This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2017, Subject name: Gynaecology & Obstetrics
[{'content': 'Most common uterine tumor is:- \nSelect and explain. \nA. Leiomyoma, B. Endometrial cancer, C. Adenomyoma, D. Leiomayosarcoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: most common uterine tumor is leiomyoma Leiomyomas of the uterus (or uterine fibroids) are benign tumors that arise from the overgrowth of smooth muscle and connective tissue in the uterus. Histologically, a monoclonal proliferation of smooth muscle cells occurs. A genetic predisposition to leiomyoma growth exists', 'role': 'assistant'}]