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': 'CA - 125 levels are elevated in \nSelect and explain. \nA. Endometriosis, B. Adenomyosis, C. Both 2 & 3, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: CA-125 levels is elevated in\n→ Endometriosis\n→ Adenomyosis\n→ Pelvic infection\n→ Leiomyoma\nAlthough it is a tumor marker.', 'role': 'assistant'}]