B) text explaining the history of the Civil Rights Movement
D) a book about the life of President John F. Kennedy
Explanation:
Nonfiction sources are real and contain facts rather than creating stories that do not necessarily have to be true rather than imagined. The above are nonfiction examples since they are factual.
Sections of a work can be interpreted in more than one way. Sometimes an author's goal is to make the reader think for himself as it'll weave the author's writing's presence into their basic mindsets. Hope this helped.