What are the implications for social ethics under the moral standard of ethical egoism? Evaluate the costs and benefits of these implications for a healthy, just society.

Explanation:

an individual ethical egoist would hold that all people should do what ever benefit " my" (the individual's) self interest, a personal ethical egoist would hold that they should at in their self interest, but would make no claims about what anyone else ought to do, are universal ethical egoist would argue that everyone.

b is the answer for this question.