Which of the following is true of a person who adopts Ethical Egoism: He/she ought to always act in a manner that accords with common sense morality. He/she should never act in a manner that accords with common sense morality. He/she should only act in a manner that accords with common sense morality if doing so serves his/her own self- interests. He/she should only act in a manner that accords with common sense morality if doing serves everyone's interests. None of the above