A tower is 61.25m high. A rigid body is dropped from its top and at the same instant another body is thrown up-wards from the bottom of the tower with such a velocity that they meet in the middle of the tower. The velocity of projection of the second body is:

A.

24.5 m/s

B.

20 m/s

C.

25 m/s

D.

22 m/s