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: Medicine
[{'content': 'Characteristic histopathological feature of penumocystis carini pneumonia -a) Interstitial pneumonitisb) Increased eosinophillsc) Foamy vacuolated exudates d) Mononuclear cell in bronchoalveolar lavagee) Neutrophil infiltration \nSelect and explain. \nA. abc, B. ad, C. bc, D. acd', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]