What best describes wholesale Internet access service?

A.
an ISP that uses the IP transport infrastructure of another service provider to reach the customers.

B.
an ISP that provides broadband access (like DSL or cable) directly to the customers.

C.
an ISP that provides both MPLS VPN and Internet access simultaneously to the customers

D.
an ISP that provides a managed firewall service to the customers

E.
and ISP that provides managed CE services to customers