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': 'Drug of choice for Hay fever: \nSelect and explain. \nA. Steroids, B. 1st generation antihistamines, C. Flibanserin, D. 2nd generation antihistamines', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Steroids are the drug of choice for Hay Fever (allergic rhinitis) and 2nd generation antihistamines are used as second line treatment.', 'role': 'assistant'}]