Which words in the sentence make up the appositive phrase? alaska, the largest state in the united states, has the smallest population.

An appositive is a word or grouping of words that describes a noun, but is set aside from the rest of the sentence.

Thus, in this sentence, the appositive phrase is:

"the largest state in the United States"

This is because it is describing Alaska, which is a proper noun, however, is set off by commas from the rest of the sentence.

Hope this helps! :)

A. her activism in the support of equality for women