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
Charas/ganja is obtained from? 
Select and explain. 
A. Cannabis, B. Cocaine, C. LSD, D. None
A: Cannabis
Answer: A: Cannabis 
Explanation: 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.