How can the technician upgrade the license?

A technician needs to update the iDRAC license on a PowerEdge R740 server from Express to Enterprise.

The server has the following components:

– 2x CPUs

– 384 GB RAM

– 6x 1 TB drives

– 1x PSU

The server is powered down but connected to active AC. The user wants it to stay powered down and not connect to any networks. No errors are presently displayed.

How can the technician upgrade the license?
A . The license cannot be upgraded because the user will not allow the server to be powered on
B . The license cannot be upgraded on a single PSU system
C . Power on the server then connect to the iDRAC and upgrade iDRAC license before powering the server down
D . Connect to the iDRAC GUI and upgrade the iDRAC license while the server is powered down.