The velocity of a particle executing a simple harmonic motion is 13 ms−1, when its distance from the equilibrium position (Q) is 3 m and its velocity is 12 ms−1, when it is 5 m away from Q. The frequency of the simple harmonic motion is
(A) 5π8
(B) 58π
(C) 8π5
(D) 85π
Ans(B)