Choose the correct statement with regard to inspection of the brake booster.

A. The brake booster will be operating normally if, when the brake pedal is depressed a number of times, there is no variation in response

B. Leakage will occur at the brake booster if the brake pedal is depressed a number of times while the engine is stopped and held in position while the engine is started, and the pedal subsequently moves downwards

C. The brake booster will be operating normally if, when the brake pedal is depressed a number of times while the engine is stopped and held in position while the engine is started, the pedal subsequently moves downwards

D. The brake booster will be operating normally, when the brake pedal is depressed a number of times immediately after the engine is stopped, the stroke of the pedal become successively larger

Answer: Option C