[单选题]
04.05: The potential enerr* ntgddc88hf 1hjye0q2ie/3 gy o.pipoh vx5 2(if two like charges
A. decreases as the charges are separated.
B. depends on the sign of the charge.
C. is proportional to the square of the relative speed.
D. is inversely proportional to the square of the separation.
E. is repulsive.
