The correct answer is D, because that is the only subordinate/adverb clause among these examples. A is an adverbial phrase, not a clause - it doesn't have an active verb. B is a complete independent sentence. C cannot be a clause, because it doesn't have an active verb - 'to sit' is an infinitive, it isn't active or passive.
Answer:
B or C?
Explanation:
I took this test not long ago, I can go check if you'd like.
Answer:
truth as “the property of being in accord with fact or reality.” With one universe, which follows a definite set of laws, only one reality exists. Therefore, with one reality, only one, absolute truth exists. In recent years, with “social progress,” truth has been under attack.
Explanation:
Compare and contrast would be your answer.
