A battery charges a parallel plate capacitor of thickness `(d)` so that an energy `[U_(0)]` is stored in the system. A slab of dielectric constant `(K)` and thickness `(d)` is then introduced between the plates of the capacitor. The new energy of the system is given by
A. `KU_(0)`
B. `K^(2)U_(0)`
C. `(U_(0))/(K)`
D. `U_(0)//K^(2)`
