Which three conditions can make a transit autonomous system unable to forward packets from one neighboring autonomous system to another neighboring autonomous system? (Choose three.)
A.
sync enabled
B.
bgp next-hop not reachable
C.
no full-mesh IBGP and not using route reflectors or confederations
D.
non-directly connected IBGP neighbors
E.
non-directly connected EBGP neighbors
F.
EBGP to IBGP route redistribution configuration errors