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: Microbiology
Lymphoreticular system includes - 
Select and explain. 
A. T- cells, B. B-cells, C. Neutrophils, D. All
D: All
Answer: D: All 
Explanation: Ans. is 'a' i.e., T- cells; 13' i.e., B-cells; 'c' i.e., Neutrophils Lymphoreticular system is a complex organization of cells of diverse morphology distributed widely in different organs and tissues of the body responsible for the immunity.