Rawls Says That "The Principles of Justice Are Chosen Behind

Rawls says that "the principles of justice are chosen behind a veil of ignorance." This means:

A) We must decide our principles without studying theories of justice.
B) We must decide our principles as if we did not know our race, gender, or social class.
C) We have an unjust society because too many people are ignorant.
D) We have an unjust society because no one can understand the principles of justice.
E) We should allow ignorant people to determine our principles of justice.