Technician a Says That When an ECU Is Exposed to Voltage

Multiple Choice

Technician A says that when an ECU is exposed to voltage spikes its circuitry can be damaged.Technician B says that because of the sensitivity of chassis electronic systems,great care should be exercised when connecting break-out box and diagnostic Tee-connectors into a circuit.Who is correct?

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