look at the underlined pronoun. annies mom helped her bake cookies for the school picnic. what is the…

Brief Explanations:

An antecedent is the word a pronoun refers to. In the sentence "Annie's mom helped her bake cookies for the school picnic", the pronoun "her" refers to Annie. It can't refer to "mom" (as that would be "herself" in this context for a more typical usage in such a sentence structure) and "cookies" is plural while "her" is singular.

Answer:

Annie