You recently added your autonomous system to an existing BGP confederation. You notice
that a route that had a local preference of 100 now has a local preference of 50. Which
statement explains the change?

A.
The confederation has sub-ASs that require all IBGP routes to have a local preference of
50 or below.

B.
When your Junos devices joined the confederation, they lost IBGP connectivity to the
route in question; the local preference reverted to 50 once the BGP peering established.

C.
The route is being shared through an EBGP peer, and the confederation is propagating
the local preference from the peer.

D.
BGP path attributes such as next hop, local preference, and MED are normally restricted
to a single AS but are allowed to propagate throughout the confederation’s AS members