This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Radiology
[{'content': 'Left hea failure findings are all except - \nSelect and explain. \nA. Kerley B Lines, B. Redistribution of blood vessels to apex, C. Oligemic lung field, D. Cardiomegaly', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Left hea failure includes cardiomegaly , kerley B lines , Redistribution of blood vessel to apex. central pulmonary venous congestion * cephalisation of pulmonary veins * pulmonary interstitial edema * pulmonary alveolar edema * cardiomegaly (may or may not be present depending on etiology', 'role': 'assistant'}]