While Having a Discussion, Technician a Says That in a Diode

Multiple Choice

While having a discussion, Technician A says that in a diode, holes flow in the direction of the arrow, while electrons go against the arrow. Technician B says that holes flow against the arrow, while electrons flow in the direction of the arrow. Who is correct?

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