Answer: its c
Explanation:
Total energy is conserved.
Energy = potential energy + kinetic energy as other forms of energy are neglected.
Clearly , position A is at a higher position from the ground , so it has more potential energy.
As the energy is conserved , the kinetic energy at A must have decreased making the total energy the same as that during B.
So,to sum it up
potential energy of the student increases and the kinetic energy decreases as he moves from B to A
