An administrator needs to apply a Technology Level update. During the preview install, the output indicates that there is insufficientspace in the \/usr filesystem. Review of the root volume group indicates there are no available physical partitions, but the \/test jfs2 filesystem is only 8% used.What is the most efficient method to use the available space in the \/test filesystem to apply theupdate?（）
A.Use chfs to reduce the \/test filesystem
B.Use cplv to copy the \/test filesystem to a smaller logical volume
C.Use migratepv l to move the \/test filesystem to a different volume group
D.Backup the \/test filesystem, remove it, and recreate it with a smaller size
参考答案：A
