35. Two iron spheres separated by some distance have a minute gravitational attraction, F. If the spheres are moved to one half their original separation and allowed to rust so that the mass of each sphere increases 41%, what would be the resulting gravitational force?
(A) 2F
(B) 4F
(C) 6F
(D) 8F
(A) 2F
(B) 4F
(C) 6F
(D) 8F