What is the function of an appositive phrase?

• A. They modify a verb
• B. They rename a noun or pronoun and can describe nouns
• C. They modify the entire sentence
• D. They function as interjections

Answer: (B)

The function is to rename a noun or pronoun and can describe nouns. An appositive phrase follows the noun and restates it or adds information about it, often set off by commas when the information is not essential. For example: "My sister, a microbiologist, works nights." Here, the appositive phrase "a microbiologist" identifies and describes "my sister." Because its role is to identify or elaborate on the noun, it best fits the idea of renaming or describing nouns. It does not modify a verb, it does not modify the entire sentence, and it is not an interjection.