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': 'True about Leiomyoma is all except \nSelect and explain. \nA. Fibroids are most common is obese females, B. Smoking is protective for leiomyomas, C. Most common in multi parous women, D. Fibroids are more common is African - american females.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Fibroid is most common in Nulliparous females.', 'role': 'assistant'}]