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: Forensic Medicine
[{'content': 'An open wound is a - \nSelect and explain. \nA. Contussion, B. Abrasion, C. Laceretion, D. Concussion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Open wound refers to injuries where overlying skin is torn, e.g. in lacerations, incised wound and stab or puncture wound.\nIn contusion and abrasions, overlying skin is intact.\nConcussion is not a wound.', 'role': 'assistant'}]