A patient is about to receive a lumbar puncture. After puncturing the ligamentum flavum, what layers must the needle penetrate before entering the CSF?
a) Epidural space, dura mater, arachnoid mater pia mater
b) Subdural space, arachnoid mater, pia mater
c) Subarachnoid space, dura mater, pia mater
d) Epidural space, subdural space, subarachnoid space
