Which of the following is an example of consumer problem behavior?

A. Mike, a teenager, spends a lot of time on the internet bullying people.
B. Leah uses someone else's stolen credit card for shopping.
C. Philip complains about the quality of the pizza that he has ordered even though there is nothing wrong with the pizza.
D. Christopher is caught for driving under the influence of alcohol.
E. Johnathan eats alone because he feels guilty about his binge-eating habits and gets worked up when waiters attend to him.