What Does the "Veil of Ignorance" Require Under the Social

What does the "veil of ignorance" require under the social contract theory of mortality?

A) that ethical obligations are decided by less intelligent members of society so that they can be understood by all
B) that ethical obligations in society not be made public, because if they were, individuals would strive to merely do the minimum
C) that ethical obligations be determined by persons who do not yet know their place in society
D) that persons who have suffered an injustice not be able to learn the identity of the person causing the injustice, at least when it is practical to keep this information from the persons who were harmed
E) that ethical obligations be determined by the lower 50% of the population economically