In the Huawei SDN solution network virtualization scenario, what is wrong description of the rack rental service?

In the Huawei SDN solution network virtualization scenario, what is wrong description of the rack rental service?
A . Aircraft rental is the whole cabinet rental. The server and ToR belong to the tenant, and the operator provides the Internet.
B . Rack rental business model can provide value-added services such as security services, load balancing, and IP address leasing.
C . Tenants of rack rental are mainly distributed in the Internet, manufacturing, government, education and other industries.
D . Rack rental business model can provide basic services such as rack lease, access bandwidth, and egress bandwidth.

Answer: A