[单选题]
If the voltage across a ci4)tw xuhc/ 3 yug*twh7rcuit om i1hr8zejm hoj 4z) ((jz)j1gf constant resistance is doubled, the power dissipatedhejz)81m4 i z 1o m(jhj()zrgj by that circuit will
A. quadruple.
B. double.
C. decrease to one half.
D. decrease to one fourth.