This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
[{'content': 'Most common symptom of CA head of pancreas: \nSelect and explain. \nA. Weight loss, B. Pain, C. Jaundice, D. Anorexia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) JaundiceRef: Sabiston 19/e p 1535-1544Symptoms of Periampullary cancers/Pancreatic Head cancers:# Jaundice (75%)# Weight loss (51%)# Pain abdomen (39%)# Pruritus# Fever# GI bleeding* Most common presentation in body and tail- pain and weight loss', 'role': 'assistant'}]