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
Congenital hypercoagulability states are all of the followings, except: 
Select and explain. 
A. Protein C deficiency, B. Protein S deficiency, C. Anti-phospholipid antibody syndrome, D. MTHF gene mutation
C: Anti-phospholipid antibody syndrome
Answer: C: Anti-phospholipid antibody syndrome 
Explanation: None