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) Ethical obligations could be decided by less intelligent members of society so that they can be understood by all.
B) Ethical obligations in society should not be made public, because if they were, individuals would strive to merely do the minimum.
C) Ethical obligations could be determined by persons who do not yet know their place in society.
D) Ethical obligations could be determined by the lower 50% of the population economically.