A Parallel Plate Capacitor of Capacitance C0 Has Plates of Area

Multiple Choice

A parallel plate capacitor of capacitance C0 has plates of area A with separation d between them.When it is connected to a battery of voltage V0, it has charge of magnitude Q0 on its plates.It is then disconnected from the battery and the space between the plates is filled with a material of dielectric constant 3.After the dielectric is added, the magnitudes of the charge on the plates and the potential difference between them are:

A) Q0, V0.
B) Q0, V0.
C) Q0, V0.
D) Q0, 3V0.
E) 3Q0, 3V0.