Technician a Says That J1939 Node Activity Can Be Identified

Multiple Choice

Technician A says that J1939 node activity can be identified using a DMM set on V-DC min-max mode. Technician B says that the V-DC min-max readings taken while verifying J1939 bus activity should run between a low of 1 volt and a high of 5 volts. Who is correct?

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