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: Anatomy
Membrana tectoria is continuation of: 
Select and explain. 
A. Anterior longitudinal ligament, B. Posterior longitudinal ligament, C. Anterior atlanto-occipital membrane, D. Posterior atlanto-occipital membrane
B: Posterior longitudinal ligament
Answer: B: Posterior longitudinal ligament 
Explanation: Ans. b. Posterior longitudinal ligament