[单选题]
Doubling the capacitan2tumz0 w,t vxi2w:bgmd ) gj,5c1bijfzz:)prm2) 6c y se of a capacitor holding a constant charge causes the energy stored in tha1ij byz )f)r2p6sz:mct capacitor to
A. quadruple.
B. double.
C. decrease to one half.
D. decrease to one fourth.
