单项选择题

A. The technician should have asked the customer to slow down and allow for a response to a few of the matters brought up in discussion.
B. The technician should have allowed the customer to finish completely, and then return to the customer’s first point to build a structured discussion.
C. The technician should have transferred the call to a supervisor, as the supervisor is better trained to handle such customers.
D. The technician should have only asked closed-ended questions so the customer could not elaborate on the issues and the technician could troubleshoot the issue.