This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chronic Lymphocytic Leukemia, Subject name: Pathology
Which of the following tumor is associated with abscopal effect? 
Select and explain. 
A. Chronic myeloid leukemia, B. Chronic lymphocytic leukemia, C. Acute lymphoblastic leukemia, D. Acute myelogenous leukemia
B: Chronic lymphocytic leukemia
Answer: B: Chronic lymphocytic leukemia 
Explanation: Abscopal effect - when spleen is exposed to any kind of damage, spleen synthesizes ceain growth factors required for proliferation of tumor cells. Therefore, when spleen is irradiated - decrease release of GF - Decrease in size of tumour. Associated with - CLL