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
[{'content': 'Low molecular weight heparin inhibits ? \nSelect and explain. \nA. Factor Xa, B. Factor Xa and IIa, C. Factor IIa, D. Factors II, VII, IX and X', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Factor Xa o Low molecular (fractionated) heparins inhibits -4 Factor Xa o Unfractionated inhibits --) Factor Ha & Xa", 'role': 'assistant'}]