Which two parameters must be identical to the remote device’s parameters when designing the local IKE proposal?

You are asked to establish an IPsec VPN between two sites. The remote device has been
preconfigured.
Which two parameters must be identical to the remote device’s parameters when designing the
local IKE proposal? (Choose two.)

A.
security protocol

B.
Diffie-Hellman group

C.
encryption algorithm

D.
Perfect Forward Secrecy keys