PHIL 2050-the structure of moral beliefs and judgments

This week, as we continue to study the structure of moral beliefs and judgments, we're looking closely at moral or cultural relativism. Some people think that relativism is the correct position, because different societies disagree about moral facts. Rachels argues that this disagreement is only apparent; in fact, all cultures have some fundamental moral values in common. In your post, short response to the following:

What is the argument he gives for this position that disagreement is apparent, and not real? Then, think of an objection or example that a cultural relativist would give to Rachels to show that the disagreement is real, and not merely apparent.