Two blocks each of, mass m=1 kg are connected with each other by a flexible light and frictionless pulley. At t = 0 an inelastic ball of, mass 'm'=1 collides from bottom with the block A with velocity `v_(0)`=16 m/sec vertically upwards, On the basis of above information. Answer the following questions.

Velocity of block A just before string becomes tight will:

Options

A. always be zero
B. may be greater than zero depending on v 0 (initial velocity of ball)
C. may be greater than zero depending on mass of ball
D. may be greater than zero depending on masses of blocks