Which of the following tools should the technician use to continue troubleshooting the connection?

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An end user is unable to connect to the network, and a technician has visually verified the lights on the back of the PC are active and there is no physical damage to the Ethernet jack .

Which of the following tools should the technician use to continue troubleshooting the connection?
A . Punchdown tool
B . Tone generator and probe
C . Cable tester
D . Crimper

Answer: C