Which remaining item must be confirmed as available onsite?

While preparing for a new four-node cluster installation, the consultant has a Tech Review Call with the customer.

The hardware is as follows:

* 4 nodes in 1 Block

* 8 x 10 GbE Ports

* 4 x 1 GbE IPMI Ports

* Adequate Ethernet ports are available

* Ethernet cables are correct and available

* Adequate rack space is available

Which remaining item must be confirmed as available onsite?
A . Crash Cart
B . Fibre Channel switches
C . Redundant 208v power
D . Redundant 110v power