What is an overly broad reference? A. It is a reference that occurs when the antecedent of a pronoun is
assumed.
B. It is a reference that occurs when the antecedent of a pronoun is
unclear.
C. It is a reference that occurs when the antecedent of a pronoun is
one or more general ideas or concepts instead of a single noun or
simple noun phrase.
D. It is a reference that occurs when there are two or more nouns in a
sentence that a pronoun could replace.

I think it's D

Explanation: broad reference is the use of a pronoun (usually which, this, that, or it) to refer to (or take the place of) a complete clause or sentence rather than a specific noun or noun phrase. Also called implied reference.

a

explanation:

there is 2 main differences, basically which are the users and the market. the other difference is the kind of content

people who use tik tok are mainly people from east asia, kind of like the app douyin. musically, on the other hand, are used by people from america or european countries.

while tik tok videos show things like daily life videos, comedy, or just funny videos, musically are like people mimicking songs with their own actions, 'imitate' singers and video clips.

hope this !