A p5 595 does not have any device connected to it for backup. What AIX method should be used to backup each of the LPAR environments and have a quick recovery path?（）

A、Use savevg and copy to an NFS filesystem

B、Create a mksysb on an NFS exported filesystem

C、Use tar to copy system over network with a pipe

D、Create mksysb on an NFS exported NIM filesystem