They settled. What do you think? Thats a pretty simple answer.
The Secretary General of NATO has the chief civil service of the North Atlantic Treaty Organization, represented by an international diplomat. He is responsable for several important tasks, such as: chairing meetings with committees and spokesperson of NATO, but military, strategy and political decisions are responsabilty of member states.
Answer: In this example, the ice cream is the REWARD for Positive REINFORCEMENT.
Explanation: In Psychology, reinforcement can be defined as the process whereby a behavior with desirable consequences comes to be repeated. Reinforcement is applied to promote or encourage a behavior in the future.