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: Surgery
[{'content': 'Varicocele of pampiniform plexus of veins has all the following characteristics except - \nSelect and explain. \nA. Negative transillumination test, B. Reducible, C. Cough impluse is present, D. Frequently on right side', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]