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
All are true regarding Hodgkin's lymphoma,except - 
Select and explain. 
A. CNS is the commonest site of involvement, B. Characteristic cell is a Reed Sternberg cell, C. Mediastinal involvement is common in nodularsclerosis type., D. Eosinophils, plasma cells and neutrophils increase
A: CNS is the commonest site of involvement
Answer: A: CNS is the commonest site of involvement 
Explanation: None