Question

What information does the appositive phrase provide for the reader?

a proper noun associated with another noun
a definition of an unfamiliar term
essential information for understanding
description of the Big Dipper

Answer 1

The right answer is: "A proper noun associated with another noun." Appositive phrases, always separated from the rest of the sentence by commas, are noun phrases that describe the noun they are attached to.

Example (appositive in bold):

Ronald, my dim-witted roommate, thought it was a good idea to smoke in the shower.