You are looking at the event log of the responding device and it says:
Rejected an initial Phase 1 packet from an unrecognized peer gateway
What are three likely reasons for the failure? (Choose three.)

A.
The peer ID is misconfigured.

B.
The default gateway is missing.

C.
The preshare keys are mismatched.

D.
The gateway address is misconfigured.

E.
The outgoing interface is misconfigured.