A technician on a service call is dealing with a furious customer who is shouting loudly. The technician cannot calm the customer down. Which of the following should the technician do NEXT?

A.
The technician should shout back at the customer and remain in control of the situation.

B.
Let the customer continue to be loud because sooner or later the customer will get tired and calm down.

C.
Call the supervisor and complain.

D.
Leave the customer site and document the incident.