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
Which of the following is sex linked disorder? 
Select and explain. 
A. Thalassemia, B. Klinefelter's syndrome, C. Hemophilia, D. Neurofibromatosis
C: Hemophilia
Answer: C: Hemophilia 
Explanation: None