Which is not true about social contract theory and kantianism

a. both view a proposed moral rule as acceptable by considering the net happiness that would result if everyone always followed the rule in social contract theory, adopted rules are enforced to protect rights of the members of society.
b. kantianism considers rules as morally acceptable if they meet the requirements of the categorical imperative

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