What type of background check is required for a firearm purchase from a licensed dealer in South Carolina?

Both state and federal background checks are required for a firearm purchase from a licensed dealer in South Carolina. This is to ensure that a potential buyer does not have any disqualifying factors such as a criminal record or a history of mental illness. Option A and B are incorrect because they only refer to one type of background check, and South Carolina requires both. Option D is incorrect because under federal law, licensed dealers are required to complete a background check for all firearm purchases.