Question

In the following sentence what is the antecedent of the pronoun it the class members chosen Chicago to visit because it provides the best opportunity for education and entertainment

Answer 1

Antecedent of a pronoun is a word that the pronoun refers to, or replaces. So, in this sentence, we are looking for the antecedent of the pronoun IT. The pronoun IT replaces the noun Chicago, which means that the word Chicago is the antecedent of the pronoun IT.
IT provides the best opportunity, meaning that Chicago does that.