Which method can an administrator use to determine the first place to start troubleshooting?

A server is experiencing issues with completing POST. The environment does not have a KVM or "Crash cart" available to view where the system is halting.

Which method can an administrator use to determine the first place to start troubleshooting?
A . Run OpenManage Essentials
B . Check rear lights on the server chassis
C . Run Repository manager
D . Check iDRAC Post Code

Answer: D