I believe so, because the other sentences restate things
The correct answer is D) A source that's cited in another source.
More properly, question words can be called ‘interrogative’ words.
<u>Who – What – Where – Why – Which – When – Whose – Whom – How</u>
‘Can’, ‘should’ and ‘would’ are other words used to ask questions in English. These words tend to require a ‘yes’ or ‘no’ answer, or an affirmative. Since these question word lead to an expected answer, they are not really questions.
3). Because the other three are facts and because it states an opinion
