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': 'Which premolar resembles a canine: \nSelect and explain. \nA. Maxillary first premolar., B. Mandibular first premolar., C. Maxillary second premolar., D. Mandibular second premolar.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]