Refer to the exhibit.

router eigrp SAF ! service-family ipv4 automous-system 1 ! sf-interface FastEthernet0/0 topology base exit-sf-topo1ogy exit-service-family
Which configuration elements must match for adjacent neighbors to establish a SAF neighbor relationship?

A.	the label name specified in the router eigrp command
B.	the autonomous-system number specified in the service-family ipv4 autonomous-system command
C.	the sf-interface configuration
D.	the topology base configurations
E.	the label name specified in the router eigrp command and the autonomous-system number