The researcher _______ conducted the original study will present the updated findings.

7
reading

Which choice completes the text so that it conforms to the conventions of Standard English?

A

who conducted the original study

B

, who conducted the original study,

C

, who conducted the original study

D

who conducted the original study,

Correct Answer: A

Choice A is the best answer. This question tests essential vs. nonessential clauses.

  1. Context clues: The clause identifies WHICH researcher will present—essential.
  2. Meaning: Essential clauses are NOT set off by commas.
  3. Verify: "The researcher who conducted the original study will present..." specifies which researcher.

đŸ’¡ Strategy: If removing the clause changes who we're discussing, it's essential (no commas).

Choice B is incorrect because commas make it nonessential, changing the meaning. Choice C is incorrect because one comma is grammatically inconsistent. Choice D is incorrect because one comma after is grammatically incorrect.

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Set 18: Boundaries 18