This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Death and postmortem changes, Subject name: Forensic Medicine
[{'content': 'Best site for blood collection for toxicology sampling - \nSelect and explain. \nA. Abdominal aoa, B. Femoral vein, C. Carotid aery, D. Hea', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 30 ml of blood is taken from femoral, axillary or jugular veins at peripheral site for toxicological analysis in autopsy. Dr. Narayana Reddys Synopsis of Forensic Medicine & Toxicology 27 th edition pg. 61.', 'role': 'assistant'}]