[单选题]
Two objects attract eachyyl- +(cm+gv b f-n-;b;psdb r other gravitationalle:u j 21ven1cg ybo,2ey. If the distance between their centers neu2e1 oej y:bgv2,c1is cut in half, the gravitational force
A. is cut to one fourth.
B. is cut in half.
C. doubles.
D. quadruples
