In an Ultimatum Bargaining Situation,one Party Makes a Single and Final

In an ultimatum bargaining situation,one party makes a single and final offer - an ultimatum - to another party.If the offer is refused,then neither party gets anything.According to economists,what is the ideal demand to make in an ultimatum game,in which you can make a single offer that would divide $100 between yourself and another player?

A) $99.99 (self) ; $.01 (other)
B) $50 (self) ; $50 (other)
C) $51 (self) ; $49 (other)
D) $100 (self) : $0 (other)