A 4-kilogram rock is resting on the edge of a lunar crater. The edge of the crater is 150 meters higher than the bottom of the crater. If the rock has 972 joules of gravitational potential energy, what is the acceleration due to gravity on the Moon?
A. 1.62 m/s²
B. 2.71 m/s²
C. 8.19 m/s²
D. 9.81 m/s²