An administrative assistant asks a computer repair teacher to help with a conference room configuration. The problem is that the computer doesn't output to a TV mounted on the wall. The all-in-one computer connects to a VoIP phone. A network connection goes from the VoIP phone to the PC, and then another connection goes from the VoIP phone to the wall jack. Two technicians have already looked at

this problem. What step should the teacher take first?

A) Establish a theory of probable cause.
B) Test a theory to determine the cause.
C) Identify the problem.
D) Establish a plan of action.

C