Answer:
The answer is rejoiced because Lincoln's election as president provided secessionist South Carolinians with the political pretext to vote in the state legislature in favor of secession.
Step-by-step explanation:
South Carolina was the first state to secede the Union after the election of the Lincoln as they were furious with him and his policy of abolishing slavery.
The South Carolina supported the slavery system because of their highly slave based agricultural economic style. The officials used this opportunity as a scapegoat to move out of the Union.
Later they joined the Confederate states of America during the Civil war.