In case of tankers, the speed of cargo pumps is reduced while stripping, why? (Multiple answer)

A. To avoid cavitation of the pump as the NPSHa may fall below NPSHr if speed is not reduced
B. To avoid cavitation of pump as the NPSHa may rise above NPSHr if speed is not reduced
C. To prevent the pump from over speeding if it loses suction
D. Decreasing the speed increases the discharge head of the pump which is required to pump out the remaining cargo

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