In relation to MPLS Multicast VPN, which three statements about multicast distribution tree (MDT)
groups are true? (Choose three.)

A.
MDTs are built in customer networks.

B.
MDTs are built in provider networks.

C.
The number of MDTs depends on PIM modes of MDT groups.

D.
Default MDT groups are used for PIM control traffic, low-bandwidth sources, and flooding of
sparse mode traffic.

E.
Data MDT groups are used for high-bandwidth sources to reduce replication to uninterested
PEs.

F.
Data MDT groups forward multicast packets using MPLS labels and Default MDT groups
forward multicast packets using GRE tunnels.