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Mark for Review

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

A

B

C

D


Correct Answer: C

Your Answer:

Explanation

C

In this Rules question, periods and question marks are changing in the answer choices, so it's testing questions versus statements. The following sentence states that researchers like Dr. Penelope Whitehorn are trying to answer a question, so the preceding sentence should be a question. Eliminate answers that aren't correctly written as questions.

  • (A) is wrong because it has a question mark but is written as a statement.

  • (B) and (D) are wrong because they are statements.

  • (C) is correct because it's correctly written as a question.