Answer: Symbolism takes something that is usually concrete and associates or affixes it to something else in order to give it a new and more significant meaning.
A pronoun can substitute a noun or a noun phrase. Among the options above only C. him and D. They are pronouns: stories is a noun and many could be a pronoun if is was standing alone, but here it is a part of a noun phrase.
C. him is singular, so the right answer is D. They
B.........................