How Did Black Interpretations of the War and Its Connection

How did black interpretations of the war and its connection to slavery compare to white northerner sentiment on the same subject?

A) Blacks did not see the war as necessary to wage compared to northern whites.
B) Blacks failed to understand the profound connections between the war and the expansion of slavery while northern whites quickly understood it.
C) Blacks rejected Lincoln's use of force against southern white resistance to federal law while northern whites eagerly embraced it.
D) Blacks compared to northern whites understood early in the war that the fate of slavery was connected to the war's outcome.