This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fundamentals in Radiology, Subject name: Radiology
[{'content': 'True about MRI are all except - \nSelect and explain. \nA. Not helpful in breast implant, B. Not good for calcified lesions, C. No radiation exposure, D. Contraindicated in cardiac pacemaker', 'role': 'user'}, {'content': 'Answer: A \nExplanation: option A is false regarding MR, explanation : MRI is considered most sensitive to detect implant rupture.', 'role': 'assistant'}]