This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Pariaeriole space is formed in spleen by 
Select and explain. 
A. T lymphocyte, B. B lymphocyte, C. Rete, D. Macrophage
A: T lymphocyte
Answer: A: T lymphocyte 
Explanation: Lymphocytes that aggregate around the central aery (mostly T-lymphocytes) create the periaerial lymphatic sheath(ref:Gray's Anatomy 40/e p1194)