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': 'Gastic erosions are likely to be associated with the following conditions except - \nSelect and explain. \nA. Pernicious anaemia, B. Cor pulmonale, C. Polycythemia rubra vera, D. Hepatic cirrhosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]