How can they solve this problem and stabilize the tunnel?

John is the Mega Corp Security Administrator, and is using Check Point R71. Malcolm is the Security Administrator of a partner company and is using a different vendor’s product and both have to build a VPN tunnel between their companies. Both are using clusters with Load Sharing for their firewalls and John is using Cluster XL as a Check Point clustering solution. While trying to establish the VPN, they are constantly noticing problems and the tunnel is not stable and then Malcolm notices that there seems to be 2 SPIs with the same IP from the Check Point site.

How can they solve this problem and stabilize the tunnel?
A . This can be solved by running the command Sticky VPN on the Check Point CL
B . This keeps the VPN Sticky to one member and the problem is resolved.
C . This is surely a problem in the ISPs network and not related to the VPN configuration.
D . This can be solved when using clusters; they have to use single firewalls.
E . This can easily be solved by using the Sticky decision function in Cluster X

Answer: D