The exhibit displays the basic architecture of a CLARiiON CX400.
What are the names of the components labeled #1 and #3?

Exhibit:

A.
#1 = Power supplies
#3 = LOC Cards

B.
#1 = Power supplies
#3 = Storage processors

C.
#1 = Storage processors
#3 = LOC cards

D.
#1 = Storage processors
#3 = 2 SPS