Reasons for South Carolina's Secession from the Union

What argument did South Carolina give for seceding?

A. The North had been aggressive and bombed a port of South Carolina.

B. The Constitution protected slavery, and had therefore been violated by the North.

C. Abraham Lincoln stated he would not represent the South as president.

D. Mississippi seceded, and South Carolina agreed with their argument.

Final answer:

South Carolina seceded from the Union because they believed the Constitution protected slavery and that the North had violated it.

Explanation:

The argument given by South Carolina for seceding was B - The Constitution protected slavery, and had therefore been violated by the North. South Carolina believed that the Northern states were not upholding their duty to enforce the Fugitive Slave Clause and were threatening the institution of slavery.