Moira is ashamed to discover that her son stole an apple from the cafeteria and gave it to another student who had no lunch. She grounds him from watching TV as punishment. Which philosophy of ethics is applies here?

The philosophy of ethics that applies here is: Utilitarism.

Explanation:

The mother is not seeing her doughter had good intentions into giving another student something to eat because he or she had none. She just considered her daughter taking the apple as a bad thing to be punish, but didn't took into account that it was really an act of good will.

She applied the utlitarism, which is an ethical theory that states right from wrong according to the outcome, or the utility of things for the greater people.