The correct option is A height
Potential energy, P.E=mgh
where, m is the body's mass, g is the acceleration due to earth's gravity and h is the body's height from the ground.
From the above equation, it is clear that, potential energy of a body is directly proportional to the its height (m and g are constants for a given body) from the ground. The higher the body is from the ground, the greater will be its potential energy.