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: Orthopaedics
Not involved in the stability of ankle joint 
Select and explain. 
A. Deltoid ligament, B. Spring ligament, C. Anterior Talofibular ligament, D. Posterior Talofibular ligament
B: Spring ligament
Answer: B: Spring ligament 
Explanation: None