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': 'Mechanism of Mianserin \nSelect and explain. \nA. Inhibitis α - adrenergic, H1 & some type of 5 - HT receptors, B. Inhibits α - adrenergic, H2 & some type of 5-HT receptors, C. Inhibitis β - adrenergic, H1 & some type of 5 - HT receptors, D. Inhibits α adrenergic & H1 receptors.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Mianserin is an atypical antidepressant that acts by inhibiting\xa0α - adrenergic, H1 & certain serotonin receptors.', 'role': 'assistant'}]