This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': "Clay Shovel's fracture involves \nSelect and explain. \nA. Spinous process, B. Lamina, C. Pedicle, D. Body", 'role': 'user'}, {'content': "Answer: A \nExplanation: Clay shoveller's fracture' is an avulsion of the spinous process of C6, C7 or T1 caused either by rotation of the upper trunk when the cervical spine is relatively fixed or, less commonly, as the result of a direct blow.", 'role': 'assistant'}]