Answer:
The answer would be B. An article analyzing a speech given by President Abraham Lincoln.
Anything written by the person which is about the person or an event in that person's life is a primary source, which A, C, and D all are. A secondary source is when it's processed through someone then respoken. Like in answer B, whoever wrote the article had to paraphrase it to make it fit in the article, making it a secondary source because some things were definitely changed.
Hope I helped! ☺
