What are three advantages of group VPNs?

What are three advantages of group VPNs? (Choose three.)

A.
Supports any-to-any member connectivity.

B.
Provides redundancy with cooperative key servers.

C.
Eliminates the need for full mesh VPNs.

D.
Supports translating private to public IP addresses.

E.
Preserves original IP source and destination addresses.

Explanation:

Reference :http://www.thomaskrenn.com/redx/tools/mb_download.php/mid.x6d7672335147784949386f3d/Manual_Configuring_
Group_VPN_Juniper_SRX.pdf