What happens if you cable a 2Gb/s expansion module and a 4Gb/s expansion module on the
same drive channel on a DS4800?

A.
the 2Gb/s drive expansion unit will be bypassed

B.
the whole system is running at 2Gb/s

C.
the 4Gb/s drives will be bypassed

D.
Only the4Gb/s drives will spin up; the 2Gb/s drives will be bypassed