The exhibit displays the basic arthitecture of a CALRiiON CX400.
What are the names of the components labeled # 4 and #5?

Exhibit:

A.
#4= 2Fans
#5 = Storage processors

B.
#4 = 2 Fans
#5 = Power supplies

C.
#4 = 2SPS
#5 = Storage processors

D.
#4 = 2SPS
#5 Power supplies