Two technicians are discussing U-joints. Technician A says that a defective U-joint could cause a loud clunk when the transmission is shifted between Drive and Reverse. Technician B says a worn U-joint can cause a clicking sound when driving the vehicle in reverse. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B