PLEASE HELP ME

Choose the statement below that completes the diagram.
Cause
Effect
The Confederacy wins
major battles early in
the Civil War.
?
O A. The Union pulls all of its troops out of Southern lands.
B. President Lincoln issues the Emancipation Proclamation.
C. The border states vote to secede from the United States.
D. The Confederacy launches an invasion of Union territory.