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: Surgery
On an average, the distance between femoral ring and saphenous opening (length of femoral canal) is ? 
Select and explain. 
A. 1.25 cm, B. 2.50 cm, C. 3.75 cm, D. 5.00 cm
A: 1.25 cm
Answer: A: 1.25 cm 
Explanation: Ans. is 'a' i.e., 1.25 cm