Helping another person with no expectation of personal reward or benefit describes

A) social exchange theory.
B) passionate love.
C) companionate love.
D) altruism.

Personal Reward

A benefit or positive outcome that an individual receives or perceives to receive after performing a particular action.

Social Exchange Theory

A theoretical framework suggesting that social behavior is the result of an exchange process aiming to maximize benefits and minimize costs in relationships.

Altruism

The selfless concern for the well-being of others, often leading to acts of kindness without expectation of reward.