What is the difference between individual and social or cultural relativism?

What is the difference between individual and social or cultural relativism?

1. What is the difference between the descriptive claim that people do differ in their moral beliefs and the metaethical theory of relativism?
2. What are the differences among the three reasons for supporting ethical relativism given in this chapter? In particular, what is the basic difference between the first and second? Between the first and third?
3. Using the excerpt from Nietzsche, explain what he means by “men of duty” and give an interpretation of this aphorism.