When the market produces and sells nine teddy bears, the deadweight loss is represented by ________.
1) The difference between the marginal cost and the price of the ninth teddy bear
2) The difference between the marginal cost and the marginal benefit of the ninth teddy bear
3) The difference between the price of the ninth teddy bear and the price at which consumers are willing to buy it
4) The difference between the price of the ninth teddy bear and the price at which producers are willing to sell it