Refer to the Exhibit.

The illustration shows the workload characteristics of a DMX which is due to be upgraded to a VMAX. Which conclusion can you draw?

A.
Front-end IOs outnumber the back-end IOs, because some IOs are satisfied in cache

B.
Front-end IOs outnumber the back-end IOs, because the devices involved are R2 targets

C.
Front-end and back-end IOs are unrelated to each other

D.
Front-end IOs outnumber the back-end IOs, because there were a lot of clone operations being performed