challenge: What was William Campbell Preston Breckinridge's stance on racial equality after the Civil War?
  
  A. He believed that racial segregation was necessary for the preservation of American institutions.
  B. He advocated for stricter laws to restrict the rights of African Americans.
  C. He opposed measures that disenfranchised African Americans and advocated for racial equality.
  D. He remained neutral on the issue of racial equality and focused on other social issues.
  Answer: 