Answer:
Differential reinforcement of low rates of behavior
Explanation:
Based on the information provided within the question it can be said that this is a Differential reinforcement of low rates of behavior. Also known as DRL, this requires a minimum amount of time to pass before a reinforcement is introduced, but must be less than the prescribed limit. This technique was created by Ferster and Skinner in 1957.
A health professional may operate within all branches of health care, including medicine, surgery, dentistry, midwifery, pharmacy, psychology, nursing or allied health professions. A health professional may also be a public/community health expert working for the common good of the society.
2 makes the most sense, but I think you would play 4 on 4, but no others make sense.