The "hot-stove" rule is sometimes used to illustrate the principles of fair, effective discipline. Which of the following principles illustrates the principle of discipline carrying a clear warning?

Correct Answer: Option D — You know what will happen if you touch a hot stove.

The hot-stove rule serves as an analogy for effective discipline, where the warning is clear and immediate. Knowing that touching a hot stove results in a burn provides the necessary advance warning. Similarly, clear communication of rules and consequences allows employees to understand the results of their actions.