It is a FACT because it is a true statement.
The correct answer is option B "accurately depict the African American experience". Langston Hughes the author of "The Negro Artist and the Racial Mountain", is considered a writer that introduced jazz in much of his poetry. In Hughes own words, he wrote so many jazz poems because "jazz to me is one of the inherent expressions of Negro life in America" (1512).
Generally, it keeps the reader interested. Also, when you start an essay/story, include a hook to capture your reader.
Round, narrow, colorful, big, feathered, etc