487 The water seal in a centrifuge, operating at normal speed, prevents the lube oil from discharging from the water outlet. Another function of the seal is to __________.

A. develop permanent emulsions with the lube oil
B. provide a means of 'washing' the oil as it passes through the bowl
C. keep the bowl at a temperature below that of the lube oil input
D. provide an area for separated water to pass and create a path to remove the water from the bowl