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: Medicine
All of the following are X - linked except - 
Select and explain. 
A. G - 6 PD deficiency, B. Hemophilia A, C. Von - willebrand's disease, D. Fragile X syndrome
C: Von - willebrand's disease
Answer: C: Von - willebrand's disease 
Explanation: X - linked diseases -

Hemophilia A   
Androgen insensitivity
Hemophilia B 
Duchenne and Becker muscular dystrophy
G-6 PD deficiency
Fragile X syndrome
Nephrogenic diabetes insipidus
Adreno leukodystrophy
Menkes syndrome 
Spinobulbar muscular atrophy