Of the following VPN Community options, which is most likely to provide a balance between IKE compatibility to VPN-capable devices (Check Point and non-Check Point) and preserving resources on the R75 Gateway? VPN tunnel sharing per:

A.
pair of hosts, no permanent tunnels, Diffie-Hellman Group 1 for Phase 1.

B.
subnet, no permanent tunnels, Diffie-Hellman Group 2 for Phase 1.

C.
subnet, permanent tunnels, Diffie-Hellman Group 1 for Phase 1.

D.
pair of hosts, permanent tunnels, Diffie-Hellman Group 2 for Phase 1.