Which of the following best describes the purpose of "A Republican Text-book for Colored Voters"?
A. To place the blame for discriminatory political policies entirely on Democratic politicians.
B. To criticize the Supreme Court for upholding racial segregation in Plessy v. Ferguson.
C. To align the Republican Party with the ideals of Booker T. Washington rather than W. E. B. Du Bois.
D. To motivate African Americans to join activist groups fighting against segregation and lynching.