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: Dental
Square knot is composed of: 
Select and explain. 
A. Two single loops thrown in opposite direction, B. Two double loops thrown in opposite direction, C. Two single loops thrown in same direction, D. Two double loops thrown in Same direction
A: Two single loops thrown in opposite direction
Answer: A: Two single loops thrown in opposite direction 
Explanation: None