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: ENT
[{'content': 'MC cause of discharge from the nose is \nSelect and explain. \nA. CSF rhinorrhea, B. Lupus erythematosus, C. Trauma, D. Allergic rhinitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Causes Common causes The most common causes of nasal congestion and discharge are the following: Viral upper respiratory infections (colds) Allergic reactions Less common causes Less common causes include Sinus infection (sinusitis) Foreign object (body) in the nose Overuse of decongestant sprays Vasomotor rhinitis', 'role': 'assistant'}]