Which sentence uses a comparative adjective?

That is the best chocolate cake I have ever tasted.

Shalon is a very talented pianist.

Ani is the better gymnast of the two.

Anthony is running more quickly than anyone else on the field.

C) Ani is the better gymnast of the two.

Explanation:

1: Positive Adjective simply describes attribute of a noun or pronoun without making comparison with any other.

Example: This is a good book. He is nice person.

2: Comparative adjective compares only two nouns.

Examples: He is a faster than me. Peacock is more beautiful than a crow. Of the two brothers, the younger is more intelligent.

3: Superlative adjective compares more than two nouns (three or more).

Examples: Of all the land animals, Cheetah is the fastest runner. The best way to eliminate poverty is to educate people.