Which of the following is the FIRST step in troubleshooting this issue?

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A network administrator has discovered an amber indicator light on one of the redundant PSUs of a production server that went offline.

Which of the following is the FIRST step in troubleshooting this issue?
A . Check the connectivity of the power cable.
B . Check the battery backup system
C . Check the power settings of the server.
D . Check the fans of the server

Answer: B