The theory that what we ought to aim at is the greatest possible amount of pleasure of all human beings, or of all sentient creatures, is:
Q1. The theory that what we ought to aim at is the greatest possible amount of pleasure of all human beings, or of all sentient creatures, is:
Answer: Utilitarianism
Explanation: Utilitarianism, developed by Bentham and Mill, holds that the morally right action is the one that produces the greatest happiness for the greatest number of sentient beings.