While Diagnosing the Cause of a Hard Start/prolonged Cranking Complaint

While diagnosing the cause of a hard start/prolonged cranking complaint, Technician A says that the high-pressure oil between the high-pressure pump and the injectors should stay pressurized for days. Technician B says the oil pressure to the injectors should quickly drop to zero when the engine is shut off. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Correct Answer:

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