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 : 
Select and explain. 
A. Factor Xa, B. Factor Xa and Ha, C. Factor Ha, D. Factors II, VII, IX and X
A: Factor Xa
Answer: A: Factor Xa 
Explanation: None