A Particle Is in Simple Harmonic Motion with Period T

Multiple Choice

A particle is in simple harmonic motion with period T.At time t=0 it is halfway between the equilibrium point and an end point of its motion, travelling toward the end point.The next time it is at the same place is:

A) t = T
B) t = T/2
C) t = T/3
D) t = T/4
E) none of the above