While Discussing Brake Pedals, Technician a Says That Prior to Taking

While discussing brake pedals, Technician A says that prior to taking a test drive to check out a complaint involving the brakes, you should check the master cylinder fluid level, but you don't need to check the brake pedal height prior to the test drive. Technician B says that you should check both the master cylinder fluid level and the brake pedal height . Who is correct?

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