Answer:
There are no options listed, but what I can tell you for sure is that John's actions were both unethical and illegal.
What John did is unethical because it is not moral and it goes against all the principles that guide professional conduct. John also did something illegal because he was an accomplice in committing fraud against the company. He knowingly benefited from the accountant's illegal actions, and that is basically the legal definition of an accomplice to a crime.