The Oil Pressure Light Stays on Whenever the Engine Is

Multiple Choice

The oil pressure light stays on whenever the engine is running. The oil pressure has been checked and it meets specifications. Technician A says a short to ground in the circuit between the indicator light and the pressure switch could be the cause. Technician B says an open in the pressure switch could be the cause. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B