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: Radiology
Mamographic abnormality seen in CA breast is? 
Select and explain. 
A. Change in density, B. Microcalcification, C. Change in architecture, D. All
D: All
Answer: D: All 
Explanation: D i.e. All