A antecedent is an expression, that gives the meaning of a pro-form, A pro-form takes its meaning from its antecedent- For example Susan arrived late because traffic held her up. The pronoun her takes its meaning from Susan, so Susan is an antecedent of her. Do you get what I mean?. I cannot tell you the answer because there is no underlined word in the sentence. But this should help you find it. Hope I helped!
