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: Pharmacology
Low molecular weight heparin inhibits clotting factor : 
Select and explain. 
A. Ha, B. IXa, C. Xa, D. Both (a) and (c)
C: Xa
Answer: C: Xa 
Explanation: None