[Fast Food Dilemma] Aiden, Who Just Started at His New

[Fast Food Dilemma] Aiden, who just started at his new job as an assistant manager at a fast-food restaurant, wants to make a good impression. He thinks that things are going well. On only the second day on the job, however, he sees his manager, Debbie, slink out of the restaurant with a big box of hamburgers. She puts them in her car and speeds away. Aiden is fairly certain that Debbie did not pay for the hamburgers. Aiden asks advice of his best friend, Kyle; his girlfriend, Mia; his sister, Katie; and his dad, Joe. Kyle says that there are no real objective standards and that Aiden should just decide to do what is best for himself. Mia says that Aiden should think about the consequences and focus on the greatest benefit to all involved. She believes that it will do no real harm for Aiden to keep his mouth shut because the fast-food restaurant is making plenty of money and probably does not pay Debbie enough anyway. Plus, getting in trouble with Debbie could cause problems at work, and if Aiden loses his job, Aiden and Mia might have to put off their impending marriage. Katie says that on balance, following the rule of producing the greatest good would mean that he should report Debbie to her boss because stealing does not generally produce the greatest satisfaction. Aiden's dad says that as a matter of principle, Aiden should report Debbie to her boss because stealing is simply wrong.
-Which theory most accurately fits the advice given by Katie?

A) Deontology
B) Act utilitarianism
C) Rule utilitarianism
D) Ethical relativism
E) Virtue ethics