I. the total is entirely kinetic
II. the ratio of potential energy to kinetic energy is constant
III. the sum of potential and kinetic energy is constant
A. I only
B. II only
C. III only
D. I & III only
Correct Answer: Option C
C. III only
Explanation
– the total energy at any point is a combination of the P.E and K.E
– the sum of PE and KE at any point is always constant not the ratio of P.E to K.E