Which two of these router series include packet voice/data module slots?

Which two of these router series include packet voice/data module slots? (Choose two.)

A.
Cisco 2900 Series Routers

B.
Cisco 1900 Series Routers

C.
Cisco 800 Series Routers

D.
Cisco 3900 Series Routers

E.
Cisco ASR 1000 Series Routers