This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lymphoma, Subject name: Medicine
Most common lymph node involved in Hodgkin's lymphoma is? 
Select and explain. 
A. Inguinal, B. Cervical, C. Axillary, D. Subclavian
B: Cervical
Answer: B: Cervical 
Explanation: Ans. (b) CervicalRef: Wintrobe's clinical hematology 12/e, chapter 96, Table 96.3, William's hematology 8/e, ch 99