What clients should consider?

A Customer wants the new E870 installed in existing 19-inch rack.

What clients should consider?
A . The system only comes with IBM rack for shipment. Customers need to remove it from the rack after the goods arrival.
B . The system can only be installed to specific IBM rack. Do not allow the use of non-IBM rack.
C . If you specify the appropriate properties on the order, there will be no rack when the system deliver it
D . The system can only be installed in the 24-inch rack.

Answer: C