WEBDuBois's the Philadelphia Negro Is Best Classified as a

W.E.B.DuBois's The Philadelphia Negro is best classified as a

A) community study,because it is similar to most ethnographies about whole villages or tribes.
B) community study,because the African American subculture is similar to a community within a society.
C) neighborhood study,because it is about a neighborhood within a big city.
D) neighborhood study,because at the time,African Americans lived within one neighborhood of Philadelphia.