What is the antecedent for the the pronoun in bold?

Although the leaves are changing later this year, THEIR colors are more vivid than usual.

The antecedent for the pronoun "their" is "leaves."

The antecedent for the pronoun "their" is "leaves."

The pronoun "their" in the sentence refers back to a noun that appears earlier in the sentence. To identify the antecedent for the pronoun, we need to find the noun that "their" is replacing. In this case, the antecedent for "their" is the noun "leaves." The antecedent is the word or phrase that the pronoun refers back to, providing clarity and avoiding repetition in writing or speech.