What should the technician install/configure?

A server has six memory modules attached to each CPU Memory Optimizer mode is configured. The user now wants to have maximum protection for the memory but cannot afford to lose any memory space.

What should the technician install/configure?
A . No additional memory
Switch on Single Rank Spare Mode
B . No additional memory
Switch to memory Mirroring
C . Six additional memory modules matching the original
Switch on Single Rank Spare Mode
D . Six additional memory modules matching the original
Switch to Memory Mirroring

Answer: D