Two bodies of masses M₁ and M₂ are placed at a distance R apart. Then at the position where the gravitational field due to them is zero, the gravitational potential is ...

A. −G√M₁/R
B. −G√M₂/R
C. −G(√M₁+√M₂)²/R
D. −G(√M₁-√M₂)²/R