When troubleshooting a site-to-site IPsec VPN deployment, you see a QM FSM message. What is
the most likely cause of this message?

A.
The Quick Mode timers have expired.

B.
There are mismatched proxy identities.

C.
Forward Secrecy Mode has failed.

D.
IKE Phase 1 has failed authentication due to mismatched DH groups.