I believe the best answer is the first sentence because that is where the action seems to occur.
The bolded pronoun in the given sentence is the word "which". This pronoun is an example of an interrogative pronoun. Interrogative pronouns are pronouns that are used to introduce a question. The antecedents of interrogative pronouns are unknown because it is what is being asked in the sentence that is missing.
Presidential candidate Abraham Lincoln had just won *the election
Don't forget the "the" haha, but yeah it's the top one because it's not a renaming, it's just part of the naming
