Jackie finds a pair of jeans that she likes but the price tag is missing. she is willing to buy it as long as it's not more than $100. the cashier informs jackie that the price is $72. jackie buys the jeans, and therefore achieved a consumer surplus of:
a. $100 because that is what she was willing to payb. $72 the price that she actually paidc. $28 the difference between what she was willing to pay and the priced. $0 because the jeans were not actually discount

Ascientist successfully predicts the outcome of an experiment. you watch carefully and know he didn't cheat. the scientist's success shows that: a) the scientist knows absolute truth about this experiment; success is not possible unless you know the truthb) the scientist was just lucky; no one ever knows what's going on, so successful predictions require luckc) the scientist may know the truth, or at least know something that is close to the truth, or the scientist may have gotten lucky this time; you can't be absolutely sured) the scientist really was cheating, even though you didn't see the cheating; no one can get things right, except by cheatinge) the scientist spent the night at a particular hotel chain and go a free breakfast, giving the scientist the ability to do amazing things