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
[{'content': "Most common lymph node involved in Hodgkin's lymphoma is? \nSelect and explain. \nA. Inguinal, B. Cervical, C. Axillary, D. Subclavian", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. (b) CervicalRef: Wintrobe's clinical hematology 12/e, chapter 96, Table 96.3, William's hematology 8/e, ch 99", 'role': 'assistant'}]