Which of the following illustrates the key difference between subjective and non-subjective issues?

None.

To identify the key difference between subjective and non-subjective issues, we need to first understand what these terms mean.

Subjective issues are ones that involve personal opinions, preferences, or beliefs that may vary from person to person. They typically do not have a single correct answer. Examples of subjective issues could be questions like "What is the best movie of all time?" or "What is the tastiest food?"

On the other hand, non-subjective issues are ones that can be objectively determined or measured. They are based on facts, evidence, and logical reasoning. Non-subjective issues tend to have a clear and definitive answer that can be agreed upon by most people. Examples of non-subjective issues include questions like "What is the capital of France?" or "What is the boiling point of water at sea level?"

To illustrate the difference between subjective and non-subjective issues, let's consider an example:

Subjective issue: "What is the most beautiful color?"
This is a subjective issue because beauty is a matter of personal preference and can vary from person to person. There is no universally correct answer to this question.

Non-subjective issue: "What is the boiling point of water at sea level?"
This is a non-subjective issue because the boiling point of water at sea level is an objective fact. It can be scientifically measured and verified. The correct answer is 100 degrees Celsius or 212 degrees Fahrenheit.

In summary, the key difference between subjective and non-subjective issues lies in the nature of the question and whether it involves personal opinions or objective facts.