Why did South Carolinians support the concept of popular sovereignty?

(1 point)
Responses

It advanced the plantation system in Kansas.
It advanced the plantation system in Kansas.

It was a plan, introduced by a southerner, which was supported in the North and the South.
It was a plan, introduced by a southerner, which was supported in the North and the South.

It showed that compromise was a peaceful way to solve problems.
It showed that compromise was a peaceful way to solve problems.

It allowed for slavery to potentially expand above the line of the Missouri Compromise.

It allowed for slavery to potentially expand above the line of the Missouri Compromise.