Read the sentence.
Laura, Lisa, and Lynn, triplet sisters, were all chosen as camp counselors.
Identify the appositive or appositive phrase in the sentence, and the word or words it renames.
Lynn; renames "triplet sisters"
triplet sisters; renames "Laura, Lisa, and Lynn"
all; renames "Laura, Lisa, and Lynn"
camp counselors; renames "Laura, Lisa, and Lynn"