A ball A is dropped from a 44. m high cliff. Two seconds later, another ball B is thrown downward from the same place with some initial speed. The two balls reach the ground together. Find the speed with which the ball B was thrown.[ Take g= 9.8m/s²].
A. 39.2m/s.
B. 44.1m/s.
C. 24.6m/s.
D. 12.6m/s.