Choose the sentence with a conjunction that correctly coordinates the two independent clauses and lists two things that need to be done at the library.

Responses
A While we are at the library, I need to return a book or also check out a new one.While we are at the library, I need to return a book or also check out a new one.
B While we are at the library, I need to return a book and also check out a new one.While we are at the library, I need to return a book and also check out a new one.
C While we are at the library, I need to return a book but also check out a new one.While we are at the library, I need to return a book but also check out a new one.
D While we are at the library, I need to return a book nor also check out a new

B While we are at the library, I need to return a book and also check out a new one.