Where is the best place to see the power supply status of the blade server enclosure?

Refer to the exhibit

Where is the best place to see the power supply status of the blade server enclosure?

A.
A-Chassis 1

B.
B- Chassis 1 – PSUs

C.
C-Chassis! – Servers

D.
D – Rack-Mounts – Servers

E.
E-Fabric interconnects A – PSUs