Before the impact of two pool balls, their combined linear momentum was 3 kg*m/s. If the cue ball comes to a complete stop after the collision, with what velocity does the .2 kg 8 ball leave the collision?

A) 1.5 kg*m/s
B) 2 kg*m/s
C) 3.5 kg*m/s
D) 4 kg*m/s