A technician is performing a functional test of a vacuum power brake booster. With the engine off, the pedal is pumped several times to deplete the reserve vacuum, then held firmly while the engine is started. What should the technician expect from a good booster?
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A
The pedal should stay at the same height with no change
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B
The pedal should rise sharply against the foot
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C
The pedal should drop slightly and then hold
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D
The pedal should sink slowly to the floor