This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Breast, Subject name: Surgery
Fibroadenoma of the breast are: 
Select and explain. 
A. Fixed mass, B. Diffuse mass, C. Multiple diffuse mass, D. Solitary mobile mass
D: Solitary mobile mass
Answer: D: Solitary mobile mass 
Explanation: Ans. (d) Solitary mobile mass(Ref: Schwartz 10/e p510)* Fibroadenoma is the MC benign tumor of Female breast* MC in 15-30 years* Also known as Breast mouse