This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'The small ridges, perikymata, seen on facial surfaces of canines are the result of \nSelect and explain. \nA. Hyperplasia, B. Hypocalcification, C. Normal development, D. Interstitial development', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]