The bodies of masses 100 kg and 8100 kg are held at a distance of 1 m. The gravitational field at a point on the line joining them is zero. The gravitational potential at that point in J/kg is

A) 6.67 x 10^(-11)
B) 8.67 x 10^(-11)
C) 1.00 x 10^(-10)
D) 1.20 x 10^(-10)