While Discussing EI Service, Technician a Says the Crankshaft Sensor

Multiple Choice

While discussing EI service, Technician A says the crankshaft sensor may be rotated to adjust the basic ignition timing. Technician B says the crankshaft sensor may be moved to adjust the clearance between the pickup coil and reluctor on some EI systems. Who is correct?

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