In the state of South Carolina what is the difference between false imprisonment and kidnapping?

I'm not in SC, but the general difference is in the intent to keep them from rescue or the intent to terrorize. Sometimes, moving them around changes it to kidnapping. For instance, standing in front of the door to force someone to stay for a few minutes while you talk to them is likely false imprisonment. Dragging them into a back room and locking them in the closet for hours while you scream death threats may be kidnapping.