[单选题]
Two objects attract n7mp 8zg6j* ukg:9wbyeach other gravitationally. If the distance between theiq2 :d5l lm 3rsktwk;p8r centers is c:l3 8qrk ;k5 lp2sdmwtut in half, the gravitational force
A. is cut to one fourth.
B. is cut in half.
C. doubles.
D. quadruples
