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
<span>C.) The lions will be entering the ring in a few minutes.</span>
It helps you imagine what they're doing in the story
