The cruise control stops working when the vehicle is being driven over bumpy roads but works normally on smooth roads. Technician A says that the brake switch could be misadjusted. Technician B says that this is a normal safety device to prevent the driver from speeding while traveling over bumpy roads. Which technician is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B