In an EVA, what is purpose of virtual disk leveling?

A.
Dynamically distribute data blocks over many physical spindles to eliminate performance
bottlenecks.

B.
Equalize disk capacity.

C.
Allocate space per disk group to recover from physical disk group member failure.

D.
Build virtual disks from physical disks.

Explanation:
Reference:http://www2.openvms.org/kparris/eva_intro.ppt(slide 11)