This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
Atypical lymphoid cells in infectious moninucleosis - 
Select and explain. 
A. Monocytes, B. CD lymphocytes, C. Killer T cells, D. Lymphoblasts
B: CD lymphocytes
Answer: B: CD lymphocytes 
Explanation: Cd8 + t cells bring about killing of B cells and are pathognomonic atypical lymphocytes seen in blood in infectious mononucleosis. Reference textbook of Pathology 7th edition author Harsha Mohan page number 330.