Which three of the following statements correctly describe the Cisco router portfolio?
(Choose three.)

A.
The Cisco 800 and 1900 router series both offer entry-level application optimization
features.

B.
The Cisco 1900 router series supports Cisco Unified Communications Manager Business
Edition 6000.

C.
The Cisco 2900 and 3900 router series support Cisco UCS Express.?

D.
All Cisco ISR G2 routers provide network automation, consolidated VPN, and security
features.

E.
The Cisco 1900, 2900, and 3900 router series provide video and collaboration features.