Suppose someone argues that genetic engineering of human embryos is morally impermissible on the grounds that it would lead to more suffering in the aggregate because it would cause a greater degree of inequality (e.g., because the rich would pay to make their own children smarter and better looking than the rest of us). What sort of normative theory is that person likely using when they make this argument?

Utilitarianism

Aristotelian virtue ethics.

Kantian deontology