Which of the following 19th century developments most undermined the racial philosophy John C. Calhoun Outlined in the excerpt from his 1848 Senate speech?

A The establishment of the Ku Klux Klan

B The enforcement of the black codes

C. The suspension of habeas corpus
D The ratification of the Thirteenth Amendment

My guess is A.

8 answers

Yeah, Its A. :)
Thanks
It is not A.
wait what?
What did Calhoun think of slavery?

http://en.wikipedia.org/wiki/John_C._Calhoun
B then
Since he defended it as something postive
It's not B.

Please do not post this again. You can look up the other answers to see which is correct.
its d.
Thanks i suppose.