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': 'Subfertility is seen most likely in \nSelect and explain. \nA. Pedunculated leiomyoma, B. Subserosal leiomyoma, C. Submucosal leiomyoma, D. Cervical leiomyoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Of myoma, subfertility is more closely associated with submucous leiomyoma.', 'role': 'assistant'}]