What are three benefits of Cisco IOS FlexVPN?

What are three benefits of Cisco IOS FlexVPN? (Choose three)

A.
Its provide hierarchical QoS on a per-tunnel basis

B.
It is compatible with most private intranet deployments

C.
Its support TACACS+

D.
It is compatible with IKEv2-based third-party VPN solutions

E.
It provides centralized policy control

F.
It support DMVPN deployment