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: Pharmacology
[{'content': 'Lorcaserin is: \nSelect and explain. \nA. 5HT1A agonist, B. 5HT2agonist, C. 5HT2 antagonist, D. 5HT3 antagonist', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Lorcaserin\xa0 is a 5HT2\xa0agonist used in the treatment of obesity.', 'role': 'assistant'}]