Which word in the sentence is an adverb?

That wrestler is very tall and muscular.

A.

muscular

B.

that

C.

tall

D.

very

The first option is an adjective: it gives an attribute to something.

The second option is a pronoun, here a demonstrative pronoun, which refers to things, and it's more similar to nouns - not an adverb.

The third option is again an adjective.

The correct answer is the last one: D. "very" - it says something about how tall the wrestler is.