This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Impoant Bacterial Diseases in Children, Subject name: Pediatrics
[{'content': 'A 4-year-old child presented with cough persisting for 1 month & low grade fever. There was a history of contact with TB. What is the chest X ray of the child given below suggestive of? \nSelect and explain. \nA. Pleural efusion, B. Miliary TB, C. Cavitation, D. Primary TB', 'role': 'user'}, {'content': "Answer: D \nExplanation: Chest X Ray showing lung parenchymal lesion with enlarged hilar lymph nodes, in a child with persistent cough, fever & history of contact with TB points towards 'Primary TB'.", 'role': 'assistant'}]