Final answer:
Utilitarianism is the philosophy that the goal of society should be to bring the greatest happiness to the greatest number of people(option a).
Step-by-step explanation:
The philosophy that the goal of society should be to bring the greatest happiness for the greatest number of people is known as option A:Utilitarianism.
Utilitarianism is a consequentialist theory developed by Jeremy Bentham and later modified by John Stuart Mill. It states that actions are right that produce the greatest happiness for the greatest number of people. Utilitarians believe that the goal of society should be to maximize human happiness and welfare, and that a just society maximizes human happiness. This philosophy is based on the principle of utility, which measures the worth of actions by their contribution to overall happiness or well-being.