A Body Falls Through the Atmosphere (Consider Air Resistance)gaining 20

Multiple Choice

A body falls through the atmosphere (consider air resistance) gaining 20 J of kinetic energy.How much gravitational potential energy did it lose?

A) 20 J
B) more than 20 J
C) less than 20 J
D) It is impossible to tell without knowing the mass of the body.
E) It is impossible to tell without knowing how far the body falls.