Referring to the figure shown below, technician A says that a shorted to ground circuit 90L between the differential pressure switch and the flow switch will cause the pump motor to run even though both the differential pressure and flow switches are open. Assuming fuse F33 is supplied with unswitched battery positive voltage and that the flow switch is normally closed, technician B says that closing the hydraulic brake switch (50) with ignition off should cause the pump motor to operate. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: C
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