Acceleration Head Is Defined As

Acceleration head is defined as:

A) the fluctuations of suction pressure created by the intake stroke of a reciprocating pump.
B) the formation and collapse of gas pockets around the impellers during pump operation.
C) equivalent head in feet of liquid necessary to push the required fluid into a pump.
D) the percentage of fluid that leaks or slips past the internal clearances of a pump over a given time.
E) the difference between how much liquid a pump can move versus how much it actually moves.