This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Forensic Medicine
[{'content': 'Which of the following is a polychlorinated hydrocarbon? \nSelect and explain. \nA. Parathion, B. Malathion, C. Diazinon, D. Dieldrin/Endrin', 'role': 'user'}, {'content': "Answer: D \nExplanation: Organochlorine insecticides are chlorinated hydrocarbons and are divided into four types as:* DDT (dichlorodiphenyl-trichloroethane) and analogues* Benzene hexachloride group -- e.g. BHC, lindane* Cyclodines and related compounds -- e.g. endrin, aldrin,dieldrin, endosulfan, sobenzan{ polycyclic polychlorinated hydrocarbon}* Toxaphene and related compounds -- e.g. toxaphen Ref: K.S.Narayan Reddy's Synopsis of Forensic Medicine and Toxicology, 29th edition, Chapter 24, page-286.", 'role': 'assistant'}]