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
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: 
Select and explain. 
A. X-linked inheritance, B. Autosomal recessive, C. Mitochondrial inheritance, D. Multifactorial inheritance
A: X-linked inheritance
Answer: A: X-linked inheritance 
Explanation: Hemophilia is an X-linked recessive disease. These diseases are more common in men than in women.
An affected male will not pass the diseases to his sons, but all daughters will be carriers.
X-linked recessive diseases are transmitted from carrier women to affected men.