PLEASE HELP ASAP BRAINLIEST FOR CORRECT ANSWER This first source shows the Thirteenth Amendment as it is seen in the U. S. Constitution. The second source is an article written by a senator describing the Thirteenth Amendment. What conclusion can be drawn based on this? A. There are only secondary sources found in the Constitution. B. There are many different types of primary sources. C. The article is not an example of a true primary source. D. The article is not a primary source because it has a bias.