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: Medicine
[{'content': 'Which of the following is a contraindication for medical management of Gall stones: \nSelect and explain. \nA. Radio-opaque stones, B. Radioluscent stones, C. Normal functioning gall bladder, D. Small stones', 'role': 'user'}, {'content': "Answer: A \nExplanation: Contraindications for medical management are: 1. Radio-opaque concretions 2. Gallstones >20mm in diameter 3. Non opacified gall bladder 4. Acute &/or chronic cholecystitis 5. Complications of gallstones 6. Poor patient compliance In carefully selected patients with a functional GB and with radiolucent stones of <10 mm diameter medical management has been useful. Ref: Gallstone disease in the elderly By Giuseppe Del Favero, Pilotto, F. Di Mario, Page 61; Harrison's 16th/1884", 'role': 'assistant'}]