An AIX 5.3 customer has a Power 780 in a 2-meter （T42） rack. This rack needs to be moved six inches （15cm） to allow under-floor access. What preparation for moving the rack will result in the least disruption to end-users？（）
- AInitiate LPAR fallover to backup systems.
- BUse Live Partition Mobility to move the LPARs to other systems.
- CUse Live Application Mobility to move critical applications to alternate systems.
- DBack up all LPARS to a NIM server and restore them to other LPARs on other systems.