This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bones Joints and Ligaments, Subject name: Anatomy
[{'content': 'Sacrotuberous Ligament is pierced by: \nSelect and explain. \nA. S1 Nerve, B. L5 Nerve, C. Coccygeal Nerve, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The Sacrotuberous Ligament is pierced by the Coccygeal Branches of the Inferior Gluteal Aery, the Perforating Cutaneous Nerve (S2,3) and filaments of the Coccygeal Plexus (formed by S4,S5 & Coccygeal Nerve).', 'role': 'assistant'}]