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
Haemopoietic malignancy is been in -  a) HTLV- 1  b) EBV  c) Parvo B19  d) HHV - 8  e) CMV 
Select and explain. 
A. abd, B. ac, C. bd, D. abc
A: abd
Answer: A: abd 
Explanation: None