This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the following has a single ossification centre only? \nSelect and explain. \nA. Clavicle, B. Carpals, C. Metacarpals, D. Metatarsals', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Carpals have only one ossification centre while about 3 centers are present for clavicle BD CHAURASIA HUMAN ANATOMY Vol 1', 'role': 'assistant'}]