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: Pharmacology
[{'content': 'Gemcitabine is used mainly in which cancer ? \nSelect and explain. \nA. Colorectal, B. Breast, C. Pancreatic, D. Cranipharyngioma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Pancreatic", 'role': 'assistant'}]