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': 'Patient with a metallic foreign body in the eye,which of the following investigation is contraindicated? \nSelect and explain. \nA. X-Ray, B. CT, C. USG, D. MRI', 'role': 'user'}, {'content': 'Answer: D \nExplanation: MRI is contraindicated in Cardiac pacemakers Aneurysmal metallic clips Metallic foreign body Cochlear implant Claustrophobia(Relative contraindication)', 'role': 'assistant'}]