Which of the following descriptions is a definition of the confirmation bias? Select one: A. The tendency to seek out evidence that confirms a claim or belief while ignoring evidence that contradicts or undermines the claim or belief. B. A belief that is irrefutable or nonfalsifiable that claims it can be used to confirm the existence of pseudoscientific methods and practices. C. The tendency for subtle cues or signals, expressed by the researcher, to bias participants so that they attempt to confirm the hypothesis being tested. D. The belief that testimonials are the best type of empirical evidence to confirm pseudoscientific claims.