Which of the following contains a vague pronoun reference?
A. After scouring the classified ads for days, Paul finally found a used car that fit his budget. The sedan had Bluetooth, but it needed to be fixed.
B. After scouring the classified ads for days, Paul finally found a used car that fit his budget. The sedan needed to be fixed, but it had Bluetooth.
Determine the correct option from the provided choices and reply with its corresponding letter.

A