Two condensers, one of capacity $C$ and the other of capacity $\frac{C}{2}$ , are connected to a V-volt battery, as shown- <br> <br> The work done in charging fully both the condensers is :

Question

( A ) $2 CV^2$
( B ) $\frac{1}{4} CV^2$
( C ) $\frac{3}{4} CV^2$
( D ) $\frac{1}{2} CV^2$