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: Surgery
Pre-menstrual fullness in breast in 21 years old unmarried female is- 
Select and explain. 
A. Galactocele, B. Fibroadenoma, C. Fibroadenosis, D. Breast cancer
C: Fibroadenosis
Answer: C: Fibroadenosis 
Explanation: None