[单选题]
Doubling the voltage acr1jzguj eh8 0i*oss a givljjb 4 q6 t /*/:0+scsmxxx)vcoj eeh-en capacitor causes the energy stored in that capacit xs-l) x*0/ecc xj+m 6o/qhvje:4sbjtor to
A. quadruple.
B. double.
C. reduce to one half.
D. reduce to one fourth.
