Answer:
Appositive.
Explanation:
An appositive can be defined as a noun or noun phrase that clarifies further the meaning of the noun or pronoun set before it. It is often used as a modifier in a sentence. It helps to enhance the meaning or the nouns or pronouns that are placed before this modifier. An appositive is followed by other nouns or pronouns and renames it.
For example,
Geoffrey Chaucer, who wrote The Canterbury Tales, is recognized as the greatest poet of the Medieval Period.
So, the correct answer is an appositive.
