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': 'Factor-X deficiency is seen in: \nSelect and explain. \nA. Hemophilia-A, B. Hemophilia-B, C. Both, D. None of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None of the above', 'role': 'assistant'}]