Two identical masses traveling in opposite directions collide. Select all true statements.
A. For a collision that is not completely plastic, the post impact direction of travel for each mass is always opposite the incoming direction of travel.

B. The post impact velocity of each mass is always equal in magnitude.

C. If both masses have the same pre-impact speed, the post impact speed of both masses is zero.

D. For a completely plastic collision the post impact velocity of both masses is the same.