Two Parallel-Plate Capacitors with the Same Plate Separation but Different

Multiple Choice

Two parallel-plate capacitors with the same plate separation but different capacitance are connected in parallel to a battery.Both capacitors are filled with air.The quantity that is NOT the same for both capacitors when they are fully charged is:

A) potential difference
B) energy density
C) electric field between the plates
D) charge on the positive plate
E) dielectric constant