Refer to the exhibit. 

A collaboration engineer is configuring dynamic call routing and DN learning between two Cisco UCM and Two Cisco UCM express. What two configuration tasks will support this? (Choose two) 

Answer options:

A. СМЕ В should be configure as service advertisement forwarder only
B. СМЕ В should be configure as service advertisement client and forwarder
C. Router A and В should be configure to use the same autonomous system number
D. Router A and СМЕ В should be configure to use the same autonomous system number
E. Router В and СМЕ В should be configure to use the same autonomous system number
F. СМЕ В should be configured as service advertisement client only.

BC