Which of the following statements about source credibility is true? select one: a. the stronger the perceived qualifications and expertise on the subject matter, the lower the credibility. b. people appear more or less credible because of their "presence." c. trustworthiness, and how qualified the person appears to be, are less powerful characteristics in determining our perception of another's credibility than the type of person the source is. d. when meeting others they don't know, people generally tend to evaluate them negatively rather than positively. e. all of the above statements about source credibility are true.

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