What is the next step in troubleshooting this issue?

An administrator is troubleshooting a no power issue on his PowerEdge server. They have confirmed the cable is "known good," and the LED on the PSU is green.

What is the next step in troubleshooting this issue?
A . Disable the PSU hot spare.
B . Ensure the power supply is RAF.
C . Reseat the power supply.
D . Replace the power supply.

Answer: C