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': 'Amylase is raised in all except \nSelect and explain. \nA. Parotitis, B. Pancreatic pseudocyst, C. Serous cyst adenoma of pancreas, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In Serous cyst adenoma of pancreas both amylase and CEA levels are decreased.', 'role': 'assistant'}]