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
Which of the following is NOT an advantage of low molecular weight heparin over unfractionated heparin ? 
Select and explain. 
A. Higher efficacy in arterial thrombosis, B. Less frequent dosing, C. Higher and more consistent subcutaneous bioavailability, D. Laboratory monitoring of response not required
A: Higher efficacy in arterial thrombosis
Answer: A: Higher efficacy in arterial thrombosis 
Explanation: None