Why Might It Be Unethical for a Public Official to Accept

Multiple Choice

Why might it be unethical for a public official to accept a gift of a discounted trip to Paris from a company that his agency regulates?

A) A reasonable person would conclude that there had been a quid pro quo.
B) It is wrong to enjoy luxurious vacations.
C) No one could go on such a trip and not be permanently biased in favor of the giver.
D) A neutral observer could reasonably doubt that the official's treatment of all airlines is fair and without preference.