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': '16 F foleys is used in \nSelect and explain. \nA. Acute urinary retention, B. CA penis, C. Pyonephrosis, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. Acute urinary retentionl6F and l8F foleys are mainly used for adults8F and 10F are mainly used for childrencute urinary retention is an indication for catheterization', 'role': 'assistant'}]