A customer runs POWER7+ servers managed by the HMC 7042-CR4 with firmware V7R7.9.0. The customer
will purchase a Power E870 server and wants to manage all servers from the same HMC.
How can this be accomplished, if necessary?

A.
Purchase a 7042-CR9 HMC

B.
Upgrade the HMC code to V8R8.2.0.

C.
The current HMC configuration already meets the customer requirements.

D.
MES the existing HMC to a 7042-CR8.