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: Pathology
Mantle cell Ca shows - 
Select and explain. 
A. CD5 +, CD25 -, B. CD 5 +, CD 10 +, C. CD 5+, CD23+, D. CD 5+, CD 23 -
D: CD 5+, CD 23 -
Answer: D: CD 5+, CD 23 - 
Explanation: Mantle cell lymphoma is CD5 positive and CD23 negative.