[单选题]
If the voltage across a 2r,)tsoeo pkv384ji u circuit of constant resistance *1kbwzse/o-bw4if q/+srz0rpx7 ;q y is doubled, the power dissipays/w+k -0;wqe xb 4*fzr7p1qi /bs ozrted by that circuit will
A. quadruple.
B. double.
C. decrease to one half.
D. decrease to one fourth.
