Slote Points Out That the Moral Beliefs of People in Other

Slote points out that the moral beliefs of people in other societies and times have been less than entirely accurate. He goes on to argue that

A) we may be the only people who will ever count as being genuinely virtuous.
B) it may not be possible to ever determine if an ethical theory is fully correct.
C) it may not be possible for people from any group or time to attain virtue.
D) the most virtuous people will likely live one thousand years from now.