Under South Carolina law, who is prohibited from owning a firearm?

South Carolina law prohibits all of the above individuals from owning a firearm, making option D the correct answer. Option A is incorrect because it only mentions convicted felons and does not include the other prohibited groups. Option B is incorrect because it only mentions individuals convicted of a domestic violence misdemeanor and does not include the other prohibited groups. Option C is incorrect because it only mentions individuals dishonorably discharged from the military and does not include the other prohibited groups. Option D is the correct answer because it includes all three prohibited groups mentioned in the other options.