A user is present when a technician is troubleshooting their workstation. They insist on showing the technician, step by step, what occurred. The user becomes confused and angry. How should the technician deal with this situation?

A.
Explain to the user that the technician can diagnose the problem on their own.

B.
Do not argue, agree about their cause of frustration and offer to help.

C.
Ask the user to watch as the technician diagnoses and corrects the problem.

D.
Suggest returning later to finish the conversation.