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
Risk factors for uterine fibroid is 
Select and explain. 
A. Pregnancy, B. African-american woman, C. Breast feeding, D. Adolescence
B: African-american woman
Answer: B: African-american woman 
Explanation: Age and race are risk factors for fibroid.

Reproductive age group
African-american women.