What can Stephanie do to achieve her goal?

Stephanie wants to reduce the encryption overhead and improve performance for her mesh VPN Community.

The Advanced VPN Properties screen below displays adjusted page settings:

What can Stephanie do to achieve her goal?
A . Check the box "Use Perfect Forward Secrecy"
B . Change the setting "Use Diffi
C . Hellman group" to "Group 5 (1536 bit)"
D . Check the box "Use aggressive mode"
E . Check the box "Support IP compression"
F . Reduce the setting "Renegotiate IKE security associations every" to "720"

Answer: D