This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
[{'content': 'Foamy liver is seen in? \nSelect and explain. \nA. Chronic venous congestion, B. 2-3 days after death due to putrefaction, C. Aseptic autolysis of dead born fetus, D. Seen immediately after death in cyanide poisoning.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Foamy liver also called Honey comb liver occurs due to putrefactive changes and production of gas due to activity of bacteria.', 'role': 'assistant'}]