Which of the following BEST explains the growing popularity of the Ku Klux Klan throughout the South in the 1860s and 1870s? A The organization capitalized on Southerners' fear of the changes that occurred after the Civil War. B The organization established the first public high schools and universities in many Southern states. C The organization built many large factories and helped the South became a major manufacturing center. D The organization was the dominant political party in the South and helped influence federal policy.
