Technician a Say the Most Common Type of Continuously Variable

Multiple Choice

Technician A say the most common type of continuously variable transmission (CVT) today is the variable-diameter pulley transmission. Technician B says the variable-diameter pulley (VDP) has two pulleys with movable drive faces that can be adjusted to change the pulley's effective diameter. Who is correct?

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