The correct answer to this open question is the following.
Although you forgot to attach the options for this question we can say the following based on our knowledge of the topic.
Five slaveholding states between the North and South did not secede from the Union though they had slavery. Among these states were Kentucky, Delaware, Missouri, and Maryland, and in 1863, West Virginia.
Originally, seven southern states seceded from the Union and this represented the beginning of the American Civil War.
Abraham Lincoln won the elections and became President of the United States. The Southern states knew that this would be its worst nightmare. They did not support abolition because their economies depended too much on slavery. The states that seceded were South Carolina, Alabama, Mississippi, Florida, Louisiana, Georgia, and Texas. They formed the Confederate States and the War began.