Technician a Says, Upon Heavy Acceleration, the Pinion Attempts to Climb

Multiple Choice

Technician A says, upon heavy acceleration, the pinion attempts to climb up the ring gear due to an "equal and opposite" reaction. Technician B says this action attempts to raise the front of the differential housing. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B