Sean is an obese teenager. He has strong cravings for food. He eats large portions of food every day. His mother, Anita, is worried about his eating habits as well as the health hazards that might arise as a result of overeating. Which of the following measures can prove most effective in curbing Sean's obesity?

A)Sean should only eat until he is satiated.
B)Anita should compel Sean to finish all the food in his plate.
C)Anita should serve food to Sean in a small-sized plate and bowl.
D)Sean should follow a binge-and-purge eating pattern.