What two changes can the administrator make to resolve the issue without affecting any existing services running through FortiGate?

What two changes can the administrator make to resolve the issue without affecting any existing services running through FortiGate? (Choose two.)
A . Create a new firewall policy with the new HTTP service and place it above the existing HTTP policy.
B. Create a new service object for HTTP service and set the session TTL to never
C. Set the TTL value to never under config system-ttl
D. Set the session TTL on the HTTP policy to maximum

Answer: B,C