[单选题]
If the current flowing thro dm5txm vh9bu hu/)-o:ugh a circuit of co wbkpy iau-w361 k;-isrx.r64vun mo)nstant resistance is doubled, the power dissipated by that cin v) 6kk13;up u-6oir.ymwaswrib- 4xrcuit will
A. quadruple.
B. double.
C. decrease to one half.
D. decrease to one fourth.
