Which choice completes the text so that it conforms to the conventions of Standard English?
Correct Answer: D
Your Answer:
Explanation
D
In this Rules question, periods and question marks are changing in the answer choices, so it's testing questions versus statements. The beginning of the sentence provides a statement that says The timings of the discovery and these political changes led many to wonder, so the second part of the sentence should be a statement. Eliminate answers that aren't correctly written as statements.
(A) and (B) are wrong because they are questions.
(C) is wrong because, although it is a statement, it makes the sentence incomplete.
(D) is correct because it's correctly written as a statement that makes the sentence complete.