A Ping-Pong Ball Moving East at a Speed of 4

Multiple Choice

A Ping-Pong ball moving East at a speed of 4 m/s collides with a stationary bowling ball. The Ping-Pong ball bounces back to the West, and the bowling ball moves very slowly to the East. Which object experiences the greater magnitude impulse during the collision?

A) the bowling ball
B) It's impossible to tell since the velocities after the collision are unknown.
C) Neither; both experienced the same magnitude impulse.
D) the Ping-Pong ball