Answer: One topic that you can use is: In the " letter of " Birmingham Jail" king points out that is not an outsider since the people of Birmingham invited him. And then your Explanation would be: King is letting the clergymen understand his role in what is going on during their time.
Explanation:
The least abstract term is Oprah Winfrey.
When you say something is <em>abstract</em>, it means that it does not have enough precision, meaning or form to be an exact thing. Something is abstract if it is too vague, generic, or theoretical.
The opposite is <em>concrete</em>. Something is concrete when you can picture it exactly in your head. Oprah Winfrey is the most concrete term in the list because it is one specific person.