JAVA/Sun Exam Questions

What is an advantage of concatenating portions of one or more physical disks into a single virtual s

What is an advantage of concatenating portions of one or more physical disks into a single virtual structure?

A.
creates a mirrored set-up to guard against disk failure

B.
creates a virtual volume larger than any physical disk partition

C.
stops system administrators from removing disks from the system

D.
allows all the disks on the system to be centrally managed by one application