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
Which of the following features on mammogram would suggest malignancy 
Select and explain. 
A. Well defined lesion, B. A mass of decreased density, C. Areas of speculated microcalcifications, D. Smooth borders
C: Areas of speculated microcalcifications
Answer: C: Areas of speculated microcalcifications 
Explanation: C i.e. Areas of spiculated microcalcification