Usually, in a conclusion, you wrap up what you have been writing about the whole time. So, a conclusion is basically a summary of the whole text. You can introduce new ideas for the reader, but it is usually inadvisable. In a couple of sentences, you should finish your text, referring to the previous paragraphs and just wrap it all up nicely.
Answer:
He Was A Photographer Who Documented Problems In American Cities.
He Was An Advocate For Children And The Poor.
Explanation:
The purpose of King’s letter is to cause negotiation to fight crisis.
