Two bodies of masses \[{{M}_{1}}\] and \[{{M}_{2}}\] 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. \[-G\frac{\sqrt{{{M}_{1}}}}{R}\]         
• B. \[-G\frac{\sqrt{{{M}_{2}}}}{R}\]
• C. \[-{{(\sqrt{{{M}_{1}}}+\sqrt{{{M}_{2}}})}^{2}}\frac{G}{R}\]           
• D. \[-{{(\sqrt{{{M}_{1}}}-\sqrt{{{M}_{2}}})}^{2}}\frac{G}{R}\]