You have completed a crude oil wash. What action should be taken with the oil in the lines running to the washing machines?

A
Open a COW nozzle forward and one aft and drain the line into the after tank by gravity
B
Blow the line out using compressed air
C
Pull a suction using the supply line pump
D
Close off all valves in the system and leave the oil in the line primed for the next crude oil wash
E