A customer is connecting to a Cisco IOS XR PE device via BGP. The peering session is up and
the customer is advertising routes, but the provider is not receiving any. Which issue is the most
likely cause?

A.
The IOS XR device drops inbound routing updates on eBGP peers without an inbound routepolicy.

B.
The IOS XR devicerequires as-override on all eBGP customer peers.

C.
The IOS XR devicerequires labeled-unicast peering sessions to eBGP customers.

D.
The IOS XR devicedrops inbound routing updates on eBGP peers that do not send extended
communities.