Two conducting spheres of radii `r_(1)` and `r_(2)` having charges `Q_(1)` and `Q_(2)` respectively are connected to each other. There is
A. No change in the electrical energy of the system
B. An increase in the electrical energy of the system
C. A decrease in the electrical energy of the system in any case
D. A decrease in electrical energy of the system if `Q_(1) R_(2) != Q_(2) R_(1)`
