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 child is brought to the pediatric OPD with fever of 24 hours duration. History reveals 3 episodes of chest infection and passage of foul smelling stools. The most probable diagnosis is: \nSelect and explain. \nA. Cystic fibrosis, B. Maple syrup urine disease, C. Bilirubin conjugation defect, D. Criggler Najar syndrome', 'role': 'user'}, {'content': "Answer: A \nExplanation: a. Cystic fibrosis(Ref: Nelson's 20/e p 2098-2112, Ghai 8/e p 393)High grade fever and chest infection along with passage of foul smelling stools suggests systemic disease.In cystic fibrosis because of pancreatic exocrine insufficiency, foul smelling stool is common.", 'role': 'assistant'}]