Why did South Carolinians believe they had the right to secede from the Union?%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0AStates had more power than the federal government.%0D%0AStates had more power than the federal government.%0D%0A%0D%0AThe new president allowed South Carolina to secede.%0D%0AThe new president allowed South Carolina to secede.%0D%0A%0D%0AThey entered the Union willingly so they could leave when they chose.%0D%0AThey entered the Union willingly so they could leave when they chose.%0D%0A%0D%0AThe U.S. Congress allowed other states to leave.

The first response provided is incorrect as it states that states had more power than the federal government. This was not a reason why South Carolinians believed they had the right to secede from the Union.

The second response is also incorrect as it repeats the inaccurate statement that states had more power than the federal government.

The third response is incorrect as well as it suggests that the new president allowed South Carolina to secede. In reality, President Abraham Lincoln did not recognize the right of secession and opposed it.

The fourth response is correct. South Carolinians believed they had the right to secede because they entered the Union willingly and believed they had the right to leave when they chose. This is referred to as the doctrine of "state sovereignty" which was prevalent in the South.

The last response is incorrect as it suggests that the U.S. Congress allowed other states to leave, which is not true. The federal government did not recognize the right of secession.