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: Pathology
[{'content': 'A female presents with history of progressive breathlessness. Histology shows heterogenous patchy fibrosis with several fibroblastic foci. The most likely diagnosis is: \nSelect and explain. \nA. Cryptogenic Organizing Pneumonia, B. Non Specific Interstitial pneumonia, C. Usual Interstitial Pneumonia, D. Desquamative Interstitial Pneumonia', 'role': 'user'}, {'content': "Answer: C \nExplanation: Histologic hallmark of UIP is a heterogeneous appearance at low magnification with alternating areas of normal lung, interstitial inflammation, foci of proliferating fibroblasts, dense collagen fibrosis and honeycomb changes. Ref: Harrison's Principles of Internal Medicine, 16th Edition, Page 1557.", 'role': 'assistant'}]