This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Tip of spine of Sphenoid is related to 
Select and explain. 
A. Auriculotemporal nerve, B. Posterior fibres of Tensor veli palatini, C. Auditory tube, D. Sphenomandibular ligament
D: Sphenomandibular ligament
Answer: D: Sphenomandibular ligament 
Explanation: The spine of the sphenoid is related laterally to the auriculotemporal nerve, and medially to the chorda tympani nerve and auditory tube. Its tip provides attachment to the sphenomandibular ligament. Its anterior aspect gives origin to the most posterior fibers of the tensor veli palatini muscleReference: Chourasia; 6th edition; 18th page