What is the most efficient method to accomplish this task?

A technician wants to move memory from a few older systems into a newer system.

What is the most efficient method to accomplish this task?
A . Power down all of the older servers to physically check the memory Move any matching memory to the new server
B . Use iDRAC to view the memory details of the older systems Power down the servers to move matching memory to the new server
C . Back up the server profile on the older server Move the matching memory and import the server profile to the new server
D . Power down any of the older servers to move any memory to the new server Update BIOS to allow mismatched memory

Answer: D