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: Pathology
Maximum magnitude of lymphocytosis is seen with- 
Select and explain. 
A. Pulmonary Koch's, B. Typhoid, C. Bacterial pneumonia, D. Infectious mononucleosis
D: Infectious mononucleosis
Answer: D: Infectious mononucleosis 
Explanation: None