This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
[{'content': 'Miliary TB is: \nSelect and explain. \nA. Primary, B. Post-primary, C. Extra-pulmonary, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Post-primary(Ref: Robbins 9th/pg 375-376)Fate of primary TB:95% cases: Cell mediated immunity controls infection - Calcified healed lesions & hilar lymph nodes formed (Ranke complex).5% cases: Primary tuberculosis is progressive (Progressive Primary TB) - resembles acute bacterial pneumonia - Lympho-hematogenous dissemination may cause tuberculous meningitis &/or miliary tuberculosis.', 'role': 'assistant'}]