Choose the CORRECT statements regarding a mass-spring system which undergoes a simple harmonic motion. I The magnitude of the acceleration is always constant. II The magnitude of the acceleration is proportional to the displacement. III The velocity is maximum at the maximum displacement. IV The restoring force is inversely proportional to the displacement. V The restoring force is maximum at maximum displacement. VI The object stops momentarily at the equilibrium position. VII The frequency depends on the mass of the spring. A. I and IV B. II and V C. II, III, V and VII D. III, IV, VI and VII E. III, IV, V and VII F. I, III, IV and VI G. II, IV, V. VI and VII H. All of the above