Hi!
I agree that the answer is D. Retiring. It seems to be the most sensible choice.
Literature. /Romanticism valued imagination and emotion over reason and intellect./ Gothic short stories are a subgenre of American Romanticism/. Love is the primary theme in the literature of American Romanticism.
A. Antecedent would be the best answer.
A thing or event that existed before or logically precedes another.
Antecedent Example: The athlete extended a hand to his opponent.
Pronoun: His
Antecedent: Athlete