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: Medicine
Classical markers for Hodgkin's disease is - 
Select and explain. 
A. CD 15 and CD 30, B. CD 15 and CD 22, C. CD 15 and CD 20, D. CD 20 and CD 30
A: CD 15 and CD 30
Answer: A: CD 15 and CD 30 
Explanation: None