For a particle undergoing SHM, when will be its
(a)velocity and displacement in the same direction
(b) velocity and acceleration in the same direction
(c ) displacement and acceleration in the same direction

Explanation

(a) When the particle moves from the mean position to the extreme position
(b) (b) When the particle moves from the extreme position to the mean position
(c ) (c) Never, as in SHM, acceleration is always in the opposite direction of displacement.