How Did President Grant's Administration Respond to Increased Southern Violence

How did President Grant's administration respond to increased southern violence against free men and women?

A) The president sent troops to retain order in the South and arrest perpetrators.
B) They did nothing; the administration was busy grappling with the problems of the Whiskey Ring.
C) Grant sent a stern warning including threats of censuring southern Congressmen until the violence ceased.
D) The administration passed two laws making it a felony to interfere with the right to vote and allowing the government to suspend the writ of habeas corpus to end Klan violence.
E) Grant pushed for a measure to make the Ku Klux Klan illegal in the South.