单选题 The author cites Logan, Huggins, and Litwack for their

(A) work on curriculum reform in the public schools
(B) participation in the Freedom Summer in Mississippi
(C) return to the field of Afro-American history
(D) research on blacks in nineteenth-century North Carolina
(E) identification with nonviolent direct action

【正确答案】 C

【答案解析】The three men are cited as examples of scholars who were encouraged to resume their earlier researches in black history. Choices A, B, and E are incorrect. None of the three men were identified in the passage with these concerns.
Choice D is incorrect. Only Logan is identi-fied with research on blacks in nineteenth-century North Carolina.