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: Forensic Medicine
[{'content': 'Charas is \nSelect and explain. \nA. Leaves of Cannabis Indica, B. Flowers of Cannabis Indica, C. Stem of Cannabis Indica, D. Resin exudate of Cannabis Indica', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Resin exudates of cannabis Indica Ref ; Narayana reddy 33rd ed.', 'role': 'assistant'}]