Explanation: The variable ratio of reinforcement uses rewards to create a high and steady rate of response. The rate of reward for a target behavior is unpredictable so the rat does not know when its response will get a reward. It will keep responding until the reward is delivered.
The options listed above are schedules of reinforcement. They are schedules used in rewarding target behavior in Operant conditioning.
Ok well there was the economic crisis in the 1780s. The war had disrupted many of the Americans economy. The British Navy had destroyed most of the Americans ship which it really hard for trade. On land they also stole food from local farms.