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
[{'content': 'The process by which red blood cells move out of vessels through widened inter endothelial junction is referred to as: \nSelect and explain. \nA. Pavementing, B. Diapedesis, C. Rouleax formation, D. Chemotaxis migration', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]