An intensive pronoun

A. shows ownership or possession.

B. acts as the object of the sentence.

C. emphasizes the noun it references.

D. looks similar to a subjective pronoun.

I think it's C.

An intensive pronoun is a pronoun that adds emphasis to a noun or pronoun already named (the antecedent)

you will usually find the intensive pronoun right after the noun or pronoun it's modifying, but not necessarily.

C. emphasizes the noun it references.

Explanation:

An intensive pronoun emphasizes a noun or another pronoun.

e. g. Anna designed the costumes herself.

herself is an intensive pronoun emphasizing the proper noun Anna.

e. g. I myself answered more than two hundred questions.

myself is an intensive pronoun emphasizing the personal pronoun I.