The Impossibility Theorem Is the Idea That

The impossibility theorem is the idea that

A) we cannot devise a voting scheme that respects individual preferences and gives consistent, non-arbitrary results.
B) it is impossible to exclude someone from enjoying the benefits of a public good.
C) it is impossible for lawmakers to get legislation passed without agreeing to help other lawmakers get their legislation passed.
D) private parties cannot arrive at the efficient solution without government intervention.