What moral obligations do corporations have to the various stakeholders in a firm, including to society more generally?

What moral obligations do corporations have to the various stakeholders in a firm, including to society more generally? Answer this question with reference to the views of Milton Friedman, Evan and Freeman and Kenneth Goodpaster, making sure to explain the strengths and weaknesses of their competing positions. Which approach provides the most convincing account of the social responsibilities of business? Give detailed reasons for your answer.