This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'When leukocytes are arranged along the endothelium of blood vessels it is called- \nSelect and explain. \nA. Diapedesis, B. Adhesion, C. Margination, D. Chemotaxis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The process of leukocyte accumulation at periphery of vessels is called margination. Leukocyte-Endothelial Interactions This is called margination of leukocytes. Next the leukocytes begin rolling along the surface of the endothelium within the blood vessel and finally they line-up along the vascular endothelium mediated by selectins Pathology, Robbins. Page no.: 35', 'role': 'assistant'}]