What involves putting one's own well-being above that of others?

A) Pleasure
B) Altruism
C) Pain
D) Egoism

Egoism

An ethical theory that treats self-interest as the foundation of morality.

Well-Being

A comprehensive term that encompasses the physical, mental, and emotional health and prosperity of an individual or community.

Others

In a context of social relations, refers to any group or individual outside of oneself, often used to define and delineate between in-group and out-group identities or experiences.