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': 'The method to diagnosis misplaced intra uterine device is \nSelect and explain. \nA. Ultrasound, B. X-Ray abdomen (Erect view), C. Uterine sound & Hysteroscopy, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. All of above Investigation of choice in displaced IUD is Ultrasound, but we can also diagnose this by X-Ray abdomen (metal in IUD produces radioopaque shadow) & Hysteroscopy (Endoscopic visualization of uterus).', 'role': 'assistant'}]