Your New Orleans plant has an opening for a controller, and four candidates have been selected for interviews. Jack, the son of a plant employee, worked as an accountant for two years to put himself through the Wharton Business School and recently earned his MBA. Richard is a CPA with eight years of experience in a public accounting firm. Susan also has a CPA and has worked as an accounting manager in the corporate office of a large corporation in the same industry. Jane does not have a CPA or MBA but has worked as controller of a smaller local competitor for eight years. After interviewing all four candidates, the general manager told you that he wants to hire Jack because he shows promise. You know from previous conversation with the GM that he also worked his way through college. Which of the following biases could be influencing the GM"s decision?

A. Knowledge-of-predictor

B. Halo effect

C. Similar-to-me

D. Gut feeling