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: Radiology
Prophylactic cranial irradiation not indicated in treatment of - 
Select and explain. 
A. Small cell Ca of lung, B. ALL, C. Hodgkin's lymphoma, D. NHL
C: Hodgkin's lymphoma
Answer: C: Hodgkin's lymphoma 
Explanation: None