You have created a site-to-site IPsec VPN between two devices. You want to keep the tunnel up at all
times, even when no user traffic is using it. Which two configuration additions will accomplish this
goal? (Choose two.)

A.
set vpn “RemoteVPN” monitor source-interface ethernet0/1 destination-ip

B.
set vpn “RemoteVPN” monitor source-interface ethernet0/1 destination-ip rekey

C.
set vpn “RemoteVPN” monitor source-interface ethernet0/1 destination-ip keepalive

D.
set vpn “RemoteVPN” monitor source-interface ethernet0/1 destination-ip rekey optimized