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': 'Anastomotic leaks are most commonly seen in \nSelect and explain. \nA. Billroth 1, B. Roux en y gastrojejunostomy, C. Polya gastrectomy, D. Antral gastrectomy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Since there is end to end gastroduodenal anastomosis in billroth 1 there are more chances of anastomotic leak', 'role': 'assistant'}]