Question

Difficulty: HardIdentifying Main Conclusions

Over the past decade, several major maritime port authorities have invested heavily in automated container-handling systems, anticipating that reduced reliance on manual labor would dramatically lower overall operating expenses. Industry analysts frequently criticize these expenditures as financially irresponsible, pointing out that high equipment procurement costs and software maintenance fees have largely offset short-term labor savings. However, these analysts evaluate automation solely through a narrow cost-accounting framework. Because automated cranes substantially decrease container dwelling times and increase berth throughput efficiency, ports utilizing them can process a significantly higher volume of freight per quay meter without expanding their physical land footprint. Thus, despite the substantial upfront and ongoing maintenance expenses, investing in port automation ultimately strengthens a maritime facility's overall long-term competitive position.

Which of the following best expresses the main conclusion of the argument?

  1. Investing in port automation ultimately enhances a maritime facility's overall long-term competitive position despite high upfront and maintenance costs.Answer
  2. B
    Automated container-handling systems enable ports to handle larger freight volumes without expanding their physical footprints.
  3. C
    Equipment procurement costs and software maintenance fees offset the short-term labor savings gained from port automation.
  4. D
    Maritime port authorities should eliminate manual labor entirely to maximize terminal operational efficiency.
  5. E
    Capital expenditures on automated container-handling cranes are financially irresponsible investments for port authorities.

Answer

Investing in port automation ultimately enhances a maritime facility's overall long-term competitive position despite high upfront and maintenance costs.
The correct answer accurately states the ultimate claim of the author. The argument moves from an analyst critique to a contrastive pivot ('However'), presents evidence regarding container throughput efficiency, and ends with the explicit conclusion introduced by 'Thus': despite high upfront costs, automation ultimately strengthens long-term competitive standing.

Step-by-Step Solution

1
Analyze the structural breakdown of the passage.
Identified background context (ports investing in automation), opposing view (analysts claim it is financially irresponsible due to costs offsetting labor savings), structural pivot ('However, these analysts evaluate automation solely through a narrow cost-accounting framework'), supporting premise (efficiency and volume capacity increases), and final conclusion.
Deconstructing the argument structure separates premises, counterarguments, and conclusions.
2
Locate the conclusion indicator and evaluate the main argument flow.
The final sentence beginning with 'Thus' summarizes the ultimate point: automation strengthens long-term competitive position despite costs.
The word 'Thus' signals the overarching deduction that all previous supporting statements are designed to justify.
3
Differentiate between intermediate supporting statements and the main conclusion.
The increase in berth throughput per quay meter serves as evidence explaining WHY the long-term competitive position is strengthened, making throughput an intermediate premise rather than the ultimate conclusion.
Ensures that supporting evidence is not confused with the ultimate claim.

Key Concept

Identifying Main Conclusions
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