Answer: DEFINITELY A. The others make absolutely no sense.
Explanation:
The sentence that uses a verb that agrees with its subject is D. Here are some new stamps from the post office.
Subject - Stamps (plural) Verb - are (plural)
A) Subject - Buildings(plural) Verb used - hides (singular) should be: hide (plural)
B) Subject - Minerals (plural) Verb used - is (singular) should be: are (plural)
C) Subject - Athlete (singular) Verb used - sit (plural) should be: sits (singular)
