An Capacitor Consists of Two Large Parallel Plates of Area

Multiple Choice

An capacitor consists of two large parallel plates of area A separated by a very small distance d. This capacitor is connected to a battery and charged until its plates carry charges +Q and -Q, and
Then disconnected from the battery. If the separation between the plates is now doubled, the
Potential difference between the plates will

A) double.
B) quadruple.
C) be cut in fourth.
D) not change.
E) be cut in half.