This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
All are true statement about spinal cord except 
Select and explain. 
A. Coccygeal ligament is investing layer of dura over filum terminale, B. Dural sac ends at S2 veebra, C. Cords ends at lower border of L1, D. Filum terminate extends up to coccyx
A: Coccygeal ligament is investing layer of dura over filum terminale
Answer: A: Coccygeal ligament is investing layer of dura over filum terminale 
Explanation: Final terminal is the pia connecting conus medullaris to coccyx. Below the end of Dural sac at S2, dura encloses this filum and attaches to coccyx as coccygeal ligament.(Ref: Vishram Singh textbook of clinical neuroanatomy second edition pg 53)