This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rhinitis, Subject name: ENT
[{'content': 'Rhinitis medicamentosa is caused by- \nSelect and explain. \nA. Nasal decongestants, B. Antihistaminic drugs, C. Steroids, D. Salbutamol', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Nasal decongestantsRhinitis medicamentosao Caused by excessive use of topical decongestant nasal drops.o It is treated by withdrawal of nasal drops, short course of systemic steroid therapy and in some cases surgical reduction of turbinates, if they have become hypertrophied", 'role': 'assistant'}]