Final answer:
The situation described is an ethical dilemma where the supervisor's directive goes against ethical responsibility.
Step-by-step explanation:
The situation described in the question is an ethical dilemma. An ethical dilemma occurs when a person is faced with making a decision between two conflicting moral responsibilities. In this case, the supervisor's directive to enter false information into the sales order book goes against the ethical responsibility of being honest and truthful in one's work.