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: Surgery
[{'content': 'the above instrument is used for ? \nSelect and explain. \nA. to measure thickness of skin graft, B. for meshing of skin graft, C. extraction of skin graft, D. all the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: image shown is HUMPTYS KNIFE USED for extraction of skin graft ref : bailey and love 27th ed', 'role': 'assistant'}]