The subject would be that marcy likes goldfish, therefore, the goldfish is a noun
It is usually the exposition.
Charles Baudelaire quoted; "... it is time, then for it to return to its true duty, which is to be the servant of the sciences and the arts- but a very humble servant,"
The correct answer to this question is A, Yesterday Sydney mailed the short story from the post office located near the school. You're Welcome. (I took the quiz and It was correct.)