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': 'One of the following substance produce injuries which stimulate confusion : \nSelect and explain. \nA. Semicarpus anacardium, B. Ricinus communis, C. Abrus percatorius, D. Capsium annum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Semicarpus anacardium', 'role': 'assistant'}]