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: Gynaecology & Obstetrics
[{'content': 'What is the FIGO staging of Carcinoma ovary with negative nodes, limited to true pelvis, microscopic implants on peritoneal surface? \nSelect and explain. \nA. III A, B. III B, C. III C, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: III A REF: See APPENDIX-60 for details of "FIGO staging of Carcinoma ovary"', 'role': 'assistant'}]