While Having a Discussion, Technician a Says That When Charging

While having a discussion, Technician A says that when charging system voltage is low and accessories are loading the system, the regulator increases the AC generator current output. Technician B says that if system voltage is normal and there is a heavy accessory load, the AC generator will run the accessories with little drain on the battery. Who is correct?

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