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': 'Who gave the stripped Y classification of clefts? \nSelect and explain. \nA. Veau, B. Kernhan, C. David and Ritchie, D. Tessier', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]