What is the appositive phrase in this sentence?
her uncle, the man over there in the red shirt, owns the hardware store in town.
a. her uncle
b. owns the hardware store
c. in town
d. the man over there in the red shirt

An appositive phrase is a phrase that "re-states" the subject (or another noun phrase), that is gives a new name or a new description.

Here the subject is "her uncle" and the new way of describing the uncle is "the man over there in the red shirt", which is also the appositive phrase.

The correct answer here is d. the man over there in the red shirt