Set 15: Boundaries (Advanced)
Explanation
PASSAGE
The scientist's findings challenge the prevailing _______ that genetic factors alone determine complex behavioral traits.
Which choice completes the text so that it conforms to the conventions of Standard English?
Detailed Answer Explanation
This question tests your understanding of sentence boundaries and punctuation. 'That genetic factors alone determine...' is an essential 'that' clause explaining the assumption. No punctuation before 'that.' To determine the correct answer, examine where complete thoughts begin and end. Look for independent clauses that need proper separation. A period, semicolon, or appropriate conjunction can correctly join or separate these ideas. When analyzing sentence boundaries, pay attention to how ideas flow from one sentence to the next. Correct punctuation ensures clarity and prevents confusion for readers. Review the options carefully to identify which choice creates proper sentence structure.
Key Evidence:
• "essential that clause"
• "no punctuation before 'that'"
Why others are wrong: C (Colon is incorrect before 'that' clause.), A (Comma incorrectly separates noun from its 'that' clause.), B (Semicolon would create a fragment.).
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