-How Did President Grant's Administration Respond to the Anti-Black Violence

-How did President Grant's administration respond to the anti-black violence, as shown in this image from Moore County, North Carolina, that was used by terrorist organizations such as the Ku Klux Klan?

A) It appointed Redeemer governments in the South to protect African Americans.
B) It passed Enforcement Acts that outlawed "armed combinations" that deprived anyone's civil rights.
C) It expanded the powers of the Freedmen's Bureau to protect blacks in the South.
D) It sent larger numbers of federal troops to the Southern states to maintain law and order.