Answer:
we cannot say that slavery is wrong if the society in question believes it is right.
Explanation:
Ethical relativism is the theory that ethical values - from good and evil, right and wrong, fair and unfair - vary from ethnic group to ethnic group, from social class to social class, from geographical context to geographic context, from people to people, from time to time, from religion to religion. For this reason, as wrong as it may seem, when ethical relativism is put into practice, it implies that we cannot say that slavery is wrong if the society in question believes that it is right.