What is a good way to establish the credibility of online sources? A. checking the site for links to other credible sources B. assess the presentation of the material for professionalism C. determine if the site presents good, unbiased coverage of the topics D. all of the above Important factors in determining the credibility of a health product manufacturer include . A. recalls, location, and doctor's recommendation B. location, clinical trials, and quality control C. recalls, location, and quality control D. clinical trials, doctor's recommendation, and quality control