Lucy, a doctor, is trying to get one of her dangerously obese patients to exercise more. According to Reinforcement Expectancy Theory, which of the following messages would be best for Lucy to use?
"If you don't start exercising NOW, I predict you have less than a year to live."
"You have two choices. Exercise or diet. Dieting is no fun at all."
"Regular exercising will make you healthy and help you feel so good."
"If death isn't motivation enough to lose weight, I don't know what is."