Answer:
I believe the answer is that the blind men were describing the elephant other than what it looks like or from a different perspective. And this shows that the truth can be close to the real truth but not the exact real truth.
I would say it is important to distinguish fact from opinion in an essay because C. essays, particularly formal ones, persuade or inform the audience on a topic, thus requiring details that can be proven.
You need to use real facts if you want to persuade somebody into believing you, not just to present your own thoughts and opinions.
Leading up to the main idea makes it more interesting and when you finally get to the argument it will be more exciting and convincing!.