How do you prevent the application from using the rule in TGB-HRApps-Work-TimeOff?

An application contains a flow action with an Apply to: class of TGB-HRApps-Work-TimeOff. When updating the application, you have a requirement to move the flow action to TGB-HRApps-Work so it can be used by more than one case type.

How do you prevent the application from using the rule in TGB-HRApps-Work-TimeOff?
A . Set the availability of the flow action in TGB-HRApps-Work to “Final”.
B . Set the availability of the flow action in TGB-HRApps-Work-TimeOff to “Not available”.
C . Set the availability of the flow action in TGB-HRApps-Work-TimeOff to “Blocked”.
D . Set the availability of the flow action in TGB-HRApps-Work-TimeOff to “Withdrawn”.

Answer: B