Which type of ethics does Stevenson say Socrates was engaged in in discussing virtue and knowledge

The correct answer is analytical

A type of research or philosophical theory that differs from normative ethics is called "metaethics" or "analytical ethics". Metaethics has as its object of philosophical research the concepts, propositions and systems of ethical beliefs. It analyzes the concepts of right and wrong, good and bad, with respect to character and conduct, as well as concepts related to them, such as, for example, moral responsibility, virtue, rights. It also includes moral epistemology: the way in which ethical truth can be known (if at all); and moral ontology: the question of whether there is a moral reality that corresponds to our beliefs and other moral attitudes. The questions of whether morality is subjective or objective, relative or absolute, and in what sense it is, belong to metaethics.