The potential energy of a freely falling body continuously decreases.

Correct answers: (a) The principle of conservation of energy is not violated or (d) Gravitational force is not violated

Explanation

As a body falls, its potential energy decreases but its kinetic energy increases by the same amount.

By the Law of Conservation of Energy, total mechanical energy (PE + KE) stays constant.

Energy is merely transformed, not lost, so the principle is not violated.

Statement (d) is true as well: gravity is a conservative force, and the body simply moves in the direction of that force, as the law of gravitation expects. So both (a) and (d) are correct; the answer key gave (a).