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All Verbal Ability and Reading Comprehension (VARC) 23 / 557

CRISPR-Cas9 technology offers unprecedented precision in modifying genetic sequences, promising revolutionary advancements in treating inherited diseases by directly altering the human genome. However, its capacity to edit germline cells, thereby introducing heritable changes across generations, raises profound ethical questions regarding human autonomy, genetic determinism, and potential societal stratification. The rapid pace of this scientific innovation often outstrips the development of robust philosophical frameworks and regulatory consensus necessary to navigate such profound alterations to the human species.

Which of the following sentences best completes this paragraph?

A. Many medical breakthroughs have historically faced ethical opposition before widespread acceptance.
B. International collaboration among scientists is crucial for sharing the latest research findings in this rapidly evolving field.
C. Consequently, urgent, interdisciplinary deliberation is required to establish comprehensive ethical guidelines and regulatory oversight before widespread clinical applications of heritable gene editing are implemented.
D. The economic implications of gene editing therapies could create new industries and markets.

Correct Answer: C
Why C works: The paragraph builds from the promise of CRISPR to the profound ethical questions raised by germline editing, concluding with the observation that scientific progress outpaces ethical and regulatory frameworks. Option C provides the logical capstone by calling for the "urgent, interdisciplinary deliberation" and "comprehensive ethical guidelines and regulatory oversight" that directly address the deficit highlighted in the third sentence. It logically follows from the identified problem of lacking frameworks and consensus.
Why A fails: This option is a general historical observation about medical breakthroughs. While true, it does not specifically address the call for robust frameworks and consensus that the paragraph concludes is needed for germline editing, making it too broad and less specific to the immediate problem.
Why B fails: This option focuses on scientific collaboration for research sharing, which is a different aspect of scientific progress. The paragraph's thrust is about the ethical and regulatory challenges of applying the technology, not the sharing of scientific findings, making it irrelevant to the core argument's conclusion.
Why D fails: This option introduces a new topic—the economic implications of gene editing. While economics is a relevant consideration in broader discussions about technology, it shifts the focus away from the ethical and regulatory gap that the paragraph meticulously builds towards as its central concern.

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