Consider the arrangement of three plates `X,Y` and `Z` each of the area `A` and separatioin `d`. The energy sotred when the plates are fully charged is
A. `(epsilon_(0)AV^(2))/(2d)`
B. `(epsilon_(0)AV^(2))/(d)`
C. `(2 epsilon_(0)AV^(2))/(d)`
D. `(3 epsilon_(0)AV^(2))/(2d)`