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: Surgery
[{'content': "Rosenthal's syndrome is seen in deficiency of factor - \nSelect and explain. \nA. II, B. V, C. IX, D. XI", 'role': 'user'}, {'content': 'Answer: D \nExplanation: • Hemophilia C (Rosenthal syndrome): Due to factor XI deficiency', 'role': 'assistant'}]