Explanation:
they all have a different meaning
Central idea is also known as main idea. Definition: The central idea (main idea) in a piece of writing is the point that the author wants you to remember most. Some writers may state the main idea, but it is often implied, which means the reader has to make inferences (what the text says + what I know) about it.
Every paragraph has to have an antecedent and an anecdote to go with it to keep the topic of the paragraph where it's supposed to be. So it doesn't turn into a run on paragraph <span />
