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: Surgery
[{'content': 'Anemia is greater in which of the following gastric resection \nSelect and explain. \nA. Billorth II, B. Billorth I, C. Both of the above are equal, D. Neither of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]