parallel plate capacitor, physics homework help

Please answer the following question, thank you!

A parallel plate capacitor is connected to a battery that maintains a constant potential difference V between the plates.  A dielectric is present between the plates of the capacitor.   If the dielectric is removed do the following quantities increase, decrease or remain the same?

Options:

A- electric field between the plates
B-the capacitance
C- the charge on the plates
D- the energy stored in the capacitor