In the ultimatum game, one reason players don't choose the rational offer is A. they are worse off by taking the offer. B. that there are too many possible outcomes to reasonably consider. C. most people believe in reciprocity, and will therefore get even if the prosper treats them badly. D. that it is not a Nash equilibrium.

C. Most people believe in reciprocity, and will therefore get even if the prosper treats them badly.

Explanation:

In recent times, this game has formed to be a great experimental tool to economists where a certain amount of money is been divided into two equal halves between the proposer and the other player. It is noted that at the end of repeatedly playing the game, ten times in their experiment, players almost always converges to the initial median effort level of four or five.

And in the other hand, a reasonable amount of players believe in reciprocity, and will therefore get even if the prosper treats them badly.

Most of this games and its forms have a set of Pareto ranked pure strategy Nash equilibria, one for each possible effort level.

since the options are not listed, when you are working on your budget you should also add water, tv, internet, miscellaneous and your 'fun' money for in your budget. when budgeting, you need to allow for fun money, and mis/accidental money so that you stick to the budget and not go crazy because you feel strapped to the budget.