Technician a Says That Vacuum Readings for an Engine with a Performance

Multiple Choice

Technician A says that vacuum readings for an engine with a performance camshaft might be lower at idle. Technician B says that an engine that has worn lower main bearings will have lower oil pressure at freeway speeds. Who is right?

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