Which of the Following, If True, Might Strengthen the Ethical

Which of the following, if True, might strengthen the ethical case for giving a larger bonus for Tracy?

A) Asked to explain his tactics, Tracy said that sales work is an intrinsically competitive field, and coworkers should expect him to act in self-interest.
B) One of the company's key policies involves tying bonuses strictly to sales records, to ensure fairness to all personnel.
C) The entire sales staff had recently undergone a thorough refresher course in ethical behavior in sales.
D) Middle managers felt that most of the complaints were based on jealousy over Tracy's increased success rate.
E) Providing a larger bonus to Tracy would give coworkers added incentive to increase their own sales records.