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': 'Lust murder is an extreme form of: MP 09 \nSelect and explain. \nA. Troilism, B. Algolagnia, C. Masochism, D. Frotteurism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. Algolagnia', 'role': 'assistant'}]