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
Fibroadenoma of the breast are 
Select and explain. 
A. Fixed mass, B. Diffuse mass, C. Multiple duffuse mass, D. Solitary mobile mass
D: Solitary mobile mass
Answer: D: Solitary mobile mass 
Explanation: Ans. is 'd' i.e. Solitary mobile mass