The correct answer is letter B
Ethics of virtues is Aristotelian ethics, the ultimate principle of which is eudaimonia. Basically, Aristotelian ethics, read the ethics of virtues, has as its main object of study to delimit what is "good" and what is its meaning.
For Aristotle in his ethics of virtue, only that human being who comes to know good will be able to experience happiness, which for him is not limited to a passing emotion, but throughout a life trajectory.
