Question

the spinal cord is anchored to the sacrum and coccyx via a strand of fibrous tissue called the
filum terminale.
meningeal ligament.
spinal ligament.
denticulate ligament.
dura mater.

Explanation:

The filum terminale is a fibrous tissue strand that anchors the spinal cord to the sacrum and coccyx. The meningeal ligament is not a standard term in this context. The spinal ligament is a general term and not specific to this anchoring structure. The denticulate ligament attaches the spinal cord to the dura mater laterally. The dura mater is one of the meninges (outer protective layers) of the spinal cord, not the anchoring fibrous tissue.

Answer:

filum terminale.