A PCIe card in the CEO of a 16-core Power 740 server has failed. The customer has removed the

cover from the machine.
What must be done to complete the replacement of the failed PCIe card?

A.
Remove the failed card
Install the new card
Replace the cover

B.
Replace the failed card
Replace the cover
Power-up the managed system
Restart all partitions

C.
Power off the domain in service tools
Remove the failed card
Install the new card
Replace the cover
Power on the domain

D.
Use the service action menu on the HMO to remove power from the slot
Replace the failed card
Complete the service action to power the slot back on
Replace the cover