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 plates are pulled apart to a separation 2d without discharging them.After the plates are 2d apart,the magnitude of the charge on the plates and the potential difference between them are

A) $\frac { 1 } { 2 }$ Q₀, $\frac { 1 } { 2 }$ V₀
B) Q₀, $\frac { 1 } { 2 }$ V₀
C) Q₀,V₀
D) Q₀,2V₀
E) 2Q₀,2V₀