[单选题]
Doubling the capacitance ofrr- +l7dt-go96bwr s hled4i9 a capa:vhcs; swx (glz0ir58p ij80mgt, f( gcitor holding a constant charge causes the energy sto5 pv c0ti x:gz 8gfhgsir,sm0;8l( wj(red in that capacitor to
A. quadruple.
B. double.
C. decrease to one half.
D. decrease to one fourth.
