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
Least common quadrant for breast carcinoma is 
Select and explain. 
A. Upper outer, B. Upper inner, C. Lower outer, D. Lower inner
D: Lower inner
Answer: D: Lower inner 
Explanation: Most common quadrant for breast carcinoma upper outer quadrant.