Given that the gravitational constant is G. Newton’s universal law of gravitation states that the force of attraction between two masses M1 and M2 separation by a distance r is
-
A.
(Gr^2 M_1M_2) -
B.
(Gr M_1M_2) -
C.
(frac{GM_1 M_2}{r^2}) -
D.
(frac{GM_1 M_2}{r})