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': 'Anorchia best diagnosed by: \nSelect and explain. \nA. USG, B. SPECT, C. CT, D. Laparoscopy', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Laparoscopy', 'role': 'assistant'}]