You want to sell your old ipad that you no longer use, and your cousin wants to give you $300 for it. if you decide to sell your ipad to your cousin, you'll have to pay $40 for shipping the ipad to your cousin. as a rational decision maker, you should:

When used-car dealers signal the quality of a used car with a warranty, a. buyers believe the signal because the cost of a false signal is high b. it is not rational to believe the signal because some used-car dealers are crooked c. the demand for lemons is eliminated d. the price of a lemon rises above the price of a good used car because warranty costs on lemons are greater than warranty costs on good used cars