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: Radiology
[{'content': 'Most sensitive investigation of pancreatic carcinoma is – \nSelect and explain. \nA. Angiography, B. ERCP, C. Ultrasound, D. CT scan', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Investigation of choice for pancreatic carcinoma → CT scan (CECT)\nMost sensitive test for pancreatic carcinoma\xa0\xa0\xa0\xa0\xa0\xa0→ Endoscopic ultrasound.', 'role': 'assistant'}]