Technician a Checks the Engine and Transmission Mounts by Running

Multiple Choice

Technician A checks the engine and transmission mounts by running the engine at 1,500 rpm with the park brake on and lightly applying the clutch, while an assistant observes the movement of the engine and transmission. Technician B checks the mounts by applying 100 ft-lbs. of torque to the drive shaft with a torque wrench while measuring the movement of the engine with a dial indicator. Who is correct?

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