This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of skin, Subject name: Dental
[{'content': 'Distal nail matrix forms \nSelect and explain. \nA. Ventral Poion of nail plate, B. Dorsal poion of nail plate, C. Both of the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref:- Review of Dermatology by Alikhan; pg num:-11', 'role': 'assistant'}]