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': "A 34-year-old, G, P0, presents for genetic counselling at 12 week's gestation. The patient has two sisters and a brother; her father has hemophilia. Her siblings are not affected, but she has a nephew that is: \nSelect and explain. \nA. X-linked inheritance, B. Autosomal recessive, C. Mitochondrial inheritance, D. Multifactorial inheritance", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hemophilia is an X-linked recessive disease. These diseases are more common in men than in women.\nAn affected male will not pass the diseases to his sons, but all daughters will be carriers.\nX-linked recessive\xa0diseases are transmitted from carrier women to affected men.', 'role': 'assistant'}]