A customer runs POWER7+ processor-based servers managed by 7042-CR4 HMCs with V7R7.9.0 firmware.
The customer will purchase a Power System E980 and wants to manage all servers from the same HMCs.
How can this be accomplished, if necessary?
A . Upgrade the code on the 7042-CR4 HMCs to V9R9.1.0•
B . Purchase two 7063-CR1 HMCs.
C . The current HMCs already satisfy the customer requirements.
D . MES the existing 7042-CR4 HMCs to 7042-CR9 HMCs.
Answer: