A writer is outlining an essay about online course organization. Review the outline: Paragraph 1: Students in online courses rely on the course site to know what to do next; Paragraph 2: Weekly modules can group readings, tasks, and due dates in a predictable place; Paragraph 3: Online courses are sometimes taken by people in many different cities; Paragraph 4: Predictable modules reduce confusion and support steady progress. Which paragraph should be moved or revised first because it breaks the essay's natural development?