This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Pediatrics
[{'content': 'A children presents with running, nose, breathlessness, family history positive, Most likely diagnosis is \nSelect and explain. \nA. Bronchiolitis, B. Viral pneumonia, C. Bronchial asthma, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Bronchial asthma) (353 - Ghai 6th) (359-Ghai 7th)* Bronchiolitis is often confused with bronchial asthma. The latter is unusual below the age of one year. There is often a family history of asthma* Viral pneumonia - RSV is the most important cause in infant under 2 years of age. There is no evidence of consolidation clinically. Radiological signs consists of perihilar and peri bronchial infiltrate', 'role': 'assistant'}]