1. Suppose there are 4 types of used cars each type with differing level of quality and each type is equally likely to be sold in the marketplace. Only sellers know the true quality of cars. Quality 1 should command $30,000, quality 2 should command $27,000; quality 3 should command $24,000 and quality 4 should command $21000 in price.Explain how bad cars will drive out the good ones. What will happen to the average quality and price of the cars sold in the marketplace?