单项选择题

A.Tell the client that they will need to place another ……

A client has called with concerns that their computer problem has not been resolved by the onsite technician who has left. As the technicians supervisor， which of the following is the BEST course of action in this situation？（）

A.Tell the client that they will need to place another service call.
B.Ask the client if they would like to discuss their computer problems in more detail.
C.Tell the client that another technician will be sent out.
D.Inform the client that the problem will be resolved by the onsite technician at another time.

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