While Having a Discussion, Technician a Says That Before Beginning

Multiple Choice

While having a discussion, Technician A says that before beginning engine disassembly, you should make sure that the engine is cold. Technician B says that tearing down a cold engine can cause warped cylinder heads, especially on engines with aluminum heads. Who is correct?

A) A only
B) B only
C) Both A and B
D) Neither A nor B