The correct answer is D.A letter that describes a civil rights leader's experience in prison
To understand why the answer is D, let's first unpack what literary non-fiction means. A literary piece of writing is one that is creative and uses a narrative technique to tell a story. A piece of non-fiction writing is one that narrates real life events that have occurred, and not imaginary events. Thus, a literary non-fiction is a piece of writing that creatively narrates a story about real life events that have occurred.
Out all the options provided in the question, D."A letter that describes a civil rights leader's experience in prison" is the best example of a literary non-fiction.