Final answer:
The correct sentence is B. It correctly punctuates the appositive or appositive phrase.
Step-by-step explanation:
The correct sentence is B.
The sentence "I asked my cousin Vinny to bring over his favorite book so I could read it." punctuates the appositive or appositive phrase correctly.
An appositive is a noun or noun phrase that renames or identifies another noun in a sentence. In this case, the noun phrase "my cousin Vinny" is used to rename the noun "cousin." It provides additional information about the cousin. In sentence B, the appositive is set off by commas, which is the correct punctuation.
Learn more about Punctuation in English sentences