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 new capacitance and the potential difference between the plates are

A) $\frac { 1 } { 2 }$ C₀, $\frac { 1 } { 2 }$ V₀
B) $\frac { 1 } { 2 }$ C₀,V₀
C) $\frac { 1 } { 2 }$ C₀,2V₀
D) C₀,2V₀
E) 2C₀,2V₀