You can get your beginner's permit when you turn 15. You must pass an exam to qualify for a beginner's permit. Driving with a beginner's permit requires that a 21 year old with at least one year of driving experience ride in the front passenger seat. You may only drive during daylight hours (6 a.m. to 6 p.m., and 6 a.m. to 8 p.m. during daylight savings time).
S.C. Code Section 56-1-50.

You can get a provisional license if you are 15 and have had a beginner's permit for 90 days. You must have proof of school attendance and pass a driver's education class and a road test to qualify for a provisional license. A provisional license allows you to drive during daylight hours unaccompanied, but at night, a 21 year old with at least one year of driving experience must ride in the front passenger seat (must be a parent after midnight). You will obtain full driving privileges when you are 16 if you have had your provisional license for one year and have no violations or at-fault accidents on your driving record.
S.C. Code Section 56-1-175.

You can get a special restricted license when you are 16 and have had a beginner's permit for 90 days. Unlike a provisional license, you do not have to have proof of school attendance or pass a driver's education class. Like a provisional license, a special restricted license allows you to drive during daylight hours unaccompanied, but at night, a 21 year old with at least one year of driving experience ride in the front passenger seat (must be a parent after midnight). You will obtain full driving privileges when you are 17.