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
Which one of the following is considered a primary ligament of the TMJ? 
Select and explain. 
A. Stylomandibular., B. Sphenomandibular., C. Stylohyoid., D. Temporomandibular.
D: Temporomandibular.
Answer: D: Temporomandibular. 
Explanation: None