Answer:
(C) That everyone writes differently and there is no one right way.
Step-by-step explanation:
The book "On Writing Well" emphasizes that good writing is not about following a strict set of rules, but rather about expressing oneself clearly and concisely in a way that is appropriate for the intended audience and purpose. The author encourages writers to develop their own style and voice, and to focus on the fundamentals of good writing such as clarity, simplicity, and brevity. Therefore, option (C) is the most accurate reflection of what the author of "On Writing Well" feels the students have learned about writing.