Necessary Assumption

Literary Critic: A novel can be considered a genuine masterpiece only if it profoundly disrupts the reader’s pre-existing worldview. Yet, the vast majority of critically acclaimed novels published during the past decade rely strictly on familiar narrative tropes that serve only to validate readers' existing ideological biases. Consequently, it is highly unlikely that future literary historians will recognize any of these recently acclaimed novels as genuine masterpieces.

Which one of the following is an assumption on which the literary critic's argument depends?

Urban Planner: To decrease traffic congestion in the downtown commercial district, the city plans to implement a new daily toll for any private vehicle entering the district during peak commuting hours. The city anticipates that this policy will successfully reduce the number of private vehicles entering the district. Clearly, this toll will achieve its goal of significantly reducing overall traffic congestion in the downtown commercial district.

Which one of the following is an assumption on which the urban planner's argument depends?

Economic Historian: Some scholars attribute the abrupt economic collapse of the Vaelorian empire to hyperinflation driven by the over-mining of krytium, the rare metal that served as their sole currency. This hypothesis is entirely untenable. Archaeological evidence confirms that krytium was notoriously difficult to extract using Vaelorian technology, meaning the total supply of available krytium could not have increased rapidly enough to trigger hyperinflation. Consequently, the Vaelorian economic collapse must have been precipitated by an external shock, such as a prolonged drought or foreign embargo, rather than by any internal monetary policy.

Which one of the following is an assumption required by the economic historian's argument?

Archaeologist: Ceramic pots excavated at the lowland Oakhaven site contain high concentrations of variscite, a rare green mineral whose only known natural deposits in the region are located in the distant Obsidian Peaks. Since the ancient Oakhaven inhabitants clearly used variscite to produce their pottery, we can conclude that they must have engaged in long-distance trade with the groups living in the Obsidian Peaks.

Which of the following is an assumption on which the archaeologist's argument depends?

Historian: Excavations at the ancient city of Tarsos have uncovered a cache of intricate silver jewelry dating to the 2nd century BCE. Chemical analysis shows this silver contains significant traces of platinum. However, there were no known silver mines containing platinum ore within a thousand miles of Tarsos. The only known mines of this type from that era were located in the distant empire of Kaelen. Thus, the presence of this jewelry proves that Tarsos engaged in direct, long-distance trade with Kaelen.

Which of the following are necessary assumptions upon which the historian's argument depends? (Select all that apply)

Mayor: The new municipal recreation center includes a state-of-the-art rock climbing wall. Because rock climbing is an excellent full-body workout that builds strength and endurance, the construction of this center will significantly improve the overall physical fitness of our town's residents.

Which of the following is an assumption on which the mayor's argument depends?

Musicologist: A recently discovered manuscript of choral music found in a monastery in Valencia is dated to 1420. This arrangement features a complex system of polyphony that was the hallmark of the Flemish school of composers during the early fifteenth century. Therefore, the manuscript must have been authored by a composer trained in the Flemish musical tradition.

Evaluate whether the following statement is true or false:

The musicologist's argument depends on assuming that the complex polyphony characteristic of the Flemish school was not independently developed by composers native to Valencia around 1420.

Climatologist: To halt the alarming retreat of the Solaria Glacier, engineers propose installing a vast network of reflective geo-blankets over the ice during the summer months. Since these blankets reflect 90 percent of incident solar radiation, their deployment will lower the surface temperature of the glacier sufficiently to prevent further seasonal melting.

Which of the following are assumptions upon which the climatologist's argument depends? (Select all that apply)

Financial Analyst: The manufacturing sector in Country X will likely experience a severe contraction this year. The global price of refined rhodium, a catalyst essential for the advanced electronics manufactured almost exclusively in Country X, has tripled in the past six months. Because manufacturers in Country X operate on very thin profit margins, they cannot absorb this cost increase without significantly raising their prices, an action that will inevitably cause a drastic drop in their sales volume.

Which one of the following is an assumption on which the financial analyst's argument depends?

Corporate Consultant: To boost overall employee productivity, our company should replace standard office chairs with standing desks. A recent occupational health study found that office workers who switched to standing desks experienced a significant decrease in chronic back pain. Furthermore, it is well established that employees who experience less overall physical discomfort are able to maintain concentration on their tasks for significantly longer periods.

Which one of the following is an assumption on which the corporate consultant's argument depends?

Anthropologist: The recently discovered Makuri manuscripts, dated to the 12th century, contain numerous loanwords from the coastal Zandian dialect. Because inland Makuri villages were separated from the coast by the treacherous High Ridge mountains, historians previously believed there was no interaction between these groups before the 15th century. However, the presence of these loanwords proves that an extensive trade network must have connected these two groups by the 12th century.

Which one of the following is an assumption on which the anthropologist's argument depends?

The recent discovery of monumental stone enclosures at a prehistoric site challenges the consensus that centralized political leadership emerged only after societies transitioned to agriculture. Radiocarbon dating confirms these structures predate domesticated crops by millennia. However, quarrying and transporting such massive pillars would have required the sustained, coordinated effort of numerous distinct nomadic bands. Therefore, the successful construction of these enclosures demonstrates that these pre-agricultural hunter-gatherers had already developed a centralized political authority capable of directing large-scale communal labor.

Which one of the following is an assumption required by the argument?

Argument: The new Z-100 electric vehicle has a maximum battery range of 400 miles per charge, which is 100 miles greater than the range of any other electric vehicle currently on the market. Based on this significant advantage, industry analysts conclude that the Z-100 will become the top-selling electric vehicle next year.

Statement: A logically necessary assumption of this argument is that consumers consider battery range to be the only important factor when deciding which electric vehicle to purchase.

Conservationist: The Azure Warbler relies exclusively on the Silver Birch tree for nesting. Over the last decade, a fungal disease has destroyed roughly 30 percent of the Silver Birch trees in the regional park. Because of this significant loss of nesting habitats, the population of Azure Warblers in the park will inevitably decline over the next few years.

Which one of the following is an assumption on which the conservationist's argument depends?

To combat the invasive lionfish damaging local marine ecosystems, coastal authorities introduced a financial bounty for every lionfish captured by recreational divers. In the twelve months following the program's implementation, the number of lionfish recorded during standardized visual surveys of the local reefs decreased by roughly 40 percent. Based on this decline, officials concluded that the bounty program successfully motivated divers to catch enough lionfish to significantly diminish their overall population in the area.

Which one of the following is an assumption required by the officials' argument?

Sociologist: Analysts argue that corporate "right to disconnect" policies cause employee anxiety by compressing workloads into fewer hours. They cite a survey showing employees at companies with these policies report significantly higher anxiety than those at companies without them. These analysts are mistaken. The survey data reveals these policies were adopted almost exclusively by companies in the notoriously high-stress financial sector. Therefore, the elevated anxiety levels reported by employees subject to these policies are attributable to the demanding nature of their industry, not to the policies themselves.

Which of the following is an assumption on which the sociologist's argument depends?

City Planner: To reduce traffic congestion in our downtown area, we must implement a new zoning policy that restricts the construction of new commercial office buildings exclusively to the city's periphery. Since the majority of downtown traffic is generated by commuters traveling to and from office buildings, limiting new offices downtown will naturally halt the increase in traffic. Furthermore, this policy will eventually lead to a significant reduction in overall downtown traffic as older downtown office buildings are repurposed for other uses.

Which of the following are necessary assumptions on which the city planner's argument depends? (Select all that apply)

Bilinguals consistently exhibit enhanced executive function compared to monolinguals. Many cognitive scientists attribute this to the continuous mental suppression of a secondary language. However, a recent study demonstrates that monolingual individuals who frequently engage in complex strategic board games exhibit a comparable degree of executive function enhancement to lifelong bilinguals. This clearly demonstrates that the constant suppression of a secondary language is not the primary mechanism responsible for the executive function advantage observed in bilingual individuals.

Which of the following is an assumption on which the argument depends?

City official: The newly constructed eastern bypass road will significantly reduce the severe traffic congestion currently experienced on Main Street. This is because the bypass will finally provide a more direct, faster route for heavy commercial trucks traveling between the industrial park and the interstate highway, meaning these vehicles will no longer need to drive through the city center.

The city official's argument relies on the assumption that commercial trucks currently contribute to the traffic congestion on Main Street.

Botanist: Ghost orchid seeds require a specific soil fungus to germinate. In Silverwood Forest, this fungus is found exclusively in the decomposing bark of fallen elder-pine trees. Therefore, the new forest management policy, which mandates the removal of all fallen elder-pine trees from Silverwood to reduce wildfire risk, will inevitably cause the forest's ghost orchid population to decline.

Which one of the following is an assumption on which the botanist's argument depends?