Answer:
The correct answer is option c. music by black musicians .
Step-by-step explanation:
These lines refer to the poem "A Poem for My Librarian, Mrs. Long".
In this poem the life of a black girl living in the United States is narrated.
Among the things she tells of her life, she stands out as she and her family listened to the radio, and that's where the lines come in:
"And sometimes sarah vaughan sing black coffee
Which I now drink "
These lines mean music by black musicians. She and her family listened not only to Sarah Vaugahn, but also to Matt Dennis, June Christy, Nat King Cole and Ella Fitzgerald among others.
Given this information we can say that the correct answer is option C.