PLEASE HELP!!
The centers of two 15.0-kilogram spheres are separated by 3.00 meters. What is the magnitude of the gravitational force that one sphere exerts on the other?
A
1.11 × 10-10 N

B
3.34 × 10-10 N

C
1.67 × 10-9 N

D
5.00 × 10-9 N