Determining Logical Continuations

Historically, customary international law (CIL)—rules derived from consistent state practice arising from a sense of legal obligation (*opinio juris*)—served as the primary regulatory framework of international relations. By the late twentieth century, however, the proliferation of multilateral treaties established a positivist paradigm that relegated CIL to a secondary role, viewing explicit sovereign consent as the only legitimate source of binding international norms. Recently, a contingent of legal theorists has advocated for a resurgence of CIL to govern domains characterized by rapid technological advancement, such as cyber warfare. These theorists argue that the glacial pace of treaty negotiation renders treaties obsolete in regulating cyberspace, whereas CIL can organically evolve alongside state practice. However, this advocacy fundamentally misapprehends the mechanics of *opinio juris*. The formation of CIL requires that state actions be motivated by a shared recognition of legal duty. In the realm of cyber warfare, state practices—such as the deployment of zero-day exploits or the maintenance of strategic ambiguity—are almost exclusively dictated by classified, unilateral security imperatives and realpolitik, rather than any emerging normative commitments. Consequently, any attempt to derive a modern regulatory framework for cyber warfare primarily by observing current state practices...

Which of the following most logically completes the passage?

Read the following passage regarding urban planning:

In recent decades, urban planners have increasingly championed 'mixed-use development'—the zoning of residential, commercial, and recreational spaces within close proximity—as the panacea for the isolation and environmental degradation associated with urban sprawl. Proponents argue that mixed-use neighborhoods reduce reliance on automobiles, foster vibrant community interactions, and create more efficient local economies. However, empirical studies tracking the implementation of these zones in historically segregated cities reveal a more complex reality. While carbon footprints in these areas have indeed decreased, the revitalization often attracts affluent newcomers, driving up property values and displacing the very lower-income residents the improved infrastructure was purportedly designed to serve. Furthermore, the commercial spaces in these new developments tend to be occupied by corporate chain stores rather than local businesses, leading to a homogenization of the neighborhood's cultural fabric.

Based on the logical structure and argumentative trajectory of the passage, match each prospective next-paragraph extension (Left) with the specific rhetorical function it would serve (Right).

For decades, evolutionary biologists debated the precise mechanism by which the mammalian middle ear evolved from the reptilian jaw. The dominant 'gradual detachment' model posited that as the primary jawbone expanded to handle mammalian chewing stresses, the secondary jaw bones were progressively freed from their load-bearing function, eventually migrating to the cranium to serve an exclusively auditory role. However, recent fossil discoveries of a Mesozoic mammalform challenge this linear narrative. These specimens reveal a transitional species possessing both a fully developed mammalian jaw joint and an intact, mechanically functional reptilian jaw joint. This anatomical redundancy indicates that the secondary bones did not simply shed their mechanical role as a strict prerequisite for sensory adaptation. Rather, the structural overlap suggests that ________.

Which one of the following most logically completes the passage?

In the mid-nineteenth century, the advent of photography provoked a crisis among portrait painters. For centuries, painting had been the primary means of capturing a realistic physical likeness of individuals for posterity. However, early cameras, despite their cumbersome nature and lengthy exposure times, could produce an undeniable exactitude of physical representation that no painter's brush could match. Consequently, many portrait painters recognized that attempting to compete with the camera on the grounds of strict, objective realism was futile. Instead, they began to explore

Which one of the following most logically completes the passage?