[Verified Answer]: Xavier has completed an introductory course…

Xavier has completed an introductory course in nutrition at his four-year university. He decides he would like to lose weight so he heads to a local GNC Nutrition store and buys a couple of dietary supplements marketed for weight loss. He learned in his introductory nutrition course about the lack of regulation and efficacy of dietary supplements but is sure that these will work for him anyway. This scenario best fits which of the following? Group of answer choices Confirmation bias Optimistic bias Placebo effect Backfire effect