Which type of traffic should the engineer allow in an EVPN Tree Service in order to fix this issue?

An engineer is investigating an EVPN traffic flow issue .

Which type of traffic should the engineer allow in an EVPN Tree Service in order to fix this issue?
A . known unicast from a leaf to another leaf
B . unknown unicast from a leaf to another leaf
C . multicast from a leaf to another leaf
D . known unicast from a root to another root

Answer: D

Explanation:

Reference: https://tools.ietf.org/html/draft-ietf-bess-evpn-etree-14