If no metric is specified for the routes being redistributed into IS-IS， what metric value is assigned to the routes？（）

A.If another path advertises the 6.6.6.0/24 path and has the default local preference， that path is more preferred
B.The command neighbor send-community is configured on BGP neighbor 10.10.23.3
C.The route 10.10.23.3 is not being advertised to other BGP neighbors
D.Route 6.6.6.0/24 is learned by an IBGP peer

A.Router RAR1 will accept only route 10.10.0.0/19 from its BGP neighbor
B.Router RAR1 will send only route 10.10.0.0/19 to its BGP neighbor
C.Only traffic with a destination from 10.10.0.0/19 will be permitted
D.Only traffic going to 10.10.0.0/19 will be permitted