What Was the Result of the Popularity of the Populist

What was the result of the popularity of the Populist Party among blacks in the South?

A) Blacks were able to gain substantial numbers of political offices and dominate politics in the South.
B) Since blacks were completely excluded from formal participation in politics, they could not vote for Populists.
C) Southerners realized that blacks were a potent political force and that they would have to share power politically.
D) It heightened fears of white southerners that African Americans might gain political power.