This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
[{'content': 'All of the following are risk factors for carcinoma Gallbladder except \nSelect and explain. \nA. Typhoid carriers, B. Adenomatous gallbladder polyps, C. Choledochal cyst, D. Oral contraceptives', 'role': 'user'}, {'content': "Answer: D \nExplanation: There is no association with OCP's Risk factors for Carcinoma Gallbladder Gallstones >3cm Procelain gallbladder Anomalous pancreaticobiliary junction (APBDJ) Choledochal cysts Adenomatous polyps Primary sclerosing cholangitis Obesity Salmonella typhi infection Ref: Sabiston 20th edition Pgno :1510", 'role': 'assistant'}]