Which of the following statements best explains white southerners' motivation for working to disenfranchise african americans voters? (a) few emancipated slaves had received sufficient education to be informed citizens. (b) they wanted to increase the influence of the republican party in the reconstruction-era south. (c) african americans began migrating out of the south in large numbers after the civil war. (d) the majority or near-majority of the population of most southern states was african american.