This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Forensic Toxicology - Concepts, Statutes, Evidence, and Techniques, Subject name: Forensic Medicine
[{'content': 'Charas/ganja is obtained from? \nSelect and explain. \nA. Cannabis, B. Cocaine, C. LSD, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Resin exudate Cannabis Indica o Charas or Hashish or bhang or ganja is resinous exudates from the leaves and stems of plant cannabis indica or cannabis sativa.", 'role': 'assistant'}]