Which three best describe the Cisco Borderless Network Architecture? (Choose three.)
A. Infrastructure and network services are the basis for user services.
B. A Cisco Borderless Network is based on a common network infrastructure.
C. Routers and switches provide transport services and operate at Layer 2 and Layer 3 of the Cisco Borderless Network Architecture.
D. A Cisco Borderless Network Architecture provides borderless network services.
E. User services are not part of the Cisco Borderless Network Architecture.