Final answer:
Technician B is correct. A low or zero reading on an ohmmeter indicates continuity. When an ohmmeter is set on its highest scale and reads infinity, it means that there is no continuity, or an open circuit.
Step-by-step explanation:
Technician B is correct. A low or zero reading on an ohmmeter indicates continuity. When an ohmmeter is set on its highest scale and reads infinity, it means that there is no continuity, or an open circuit. This occurs when no current can flow through the component being measured, indicating a break in the circuit or an extremely high resistance.