Julie has a 7-year-old son named Leo who has been having some behavioral difficulties. Leo doesn't like to share his toys or things with his friends. He cannot get along with his siblings as well as his peers. Another complaint that his mother has is with regards to his eating habits. He is picky in eating and has an aversion for veggies. No matter how many times his mother has tried explaining it doesn't work. Using the principles of operant conditioning, devise strategies to bring about behavior modification. Specifically describe how you will use positive reinforcement, negative reinforcement, positive punishment, and negative punishment to modify the above behaviors.