A parallel plate air capacitor is connected to a battery. The...

A parallel plate air capacitor is connected to a battery. The quantities charge, voltage, electric field and energy associated with the capacitor are given by $Q_0, V_0, E_0$ and $U_0$ respectively. $A$ dielectric slab is now inserted to fill the space between the plates with battery still in connection. The corresponding quantities now given by (\mathrm{Q}, \mathrm{VE}) and U are related to the previous one as : (a) (\mathrm{Q}>\mathrm{Q}_0) (b) (\mathrm{V}>\mathrm{V}_0) (c) (\mathrm{E}>\mathrm{E}_0) (d) (\mathrm{U}>\mathrm{U}_0)