Which of the following are examples of how people give up some of their privacy in order to gain something in return (utility)? Select two answers. a. Students make sure to use the "Incognito" tab in a web browser so that none of the browsing history is saved and all cache is cleared at the end of the browsing session. b. People only use cash to pay for products since they do not have any credit cards. c. Customers sign up for "rewards" programs for different grocery stores so that they can get discounts on different items throughout the store. d. People enable GPS on their phone so that Apps can locate nearby stores, restaurants and hotels.

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