This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Radiology
[{'content': 'which is not a radiographic finding of CHF \nSelect and explain. \nA. Kerley B lines, B. Kerley A lines, C. Cardiomegaly, D. Oligemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ref : harrisons 21st ed', 'role': 'assistant'}]