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': 'Maximum number of developmental grooves are present on the cingulum of: \nSelect and explain. \nA. Permanent maxillary lateral incisor., B. Permanent mandibular central incisor., C. Permanent maxillary canine., D. Permanent mandibular lateral incisors.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]