50. The author’s conclusion about Cullen’s contribution to the development of a distinctive African American voice would be most weakened by the publication of which of the following? (A)The diary of a writer of the Harlem Renaissance documenting the racial episodes in one of the writer’s novels. (B) A survey of African American literature demonstrating Black writers’ ultimate rejection of European literary models. (C) The poems of a nineteenth-century Black poet who used the forms of eighteen-century English poetry. (D) An assay by a Black poet insisting on this responsibility of Black writers to address the issue of race in their writing.