Question

the bundle of nerves that runs through the hollow part of the vertebrae is called the—
○ spinal cartilage.
○ vertebral column.
○ spinal column.
○ spinal cord.

Explanation:

The question asks for the bundle of nerves passing through the hollow part of vertebrae. Spinal cartilage is connective tissue, not nerves. Vertebral column (or spinal column) refers to the bones (vertebrae) themselves, not the nerve bundle. The spinal cord is the nerve bundle within the vertebral column's hollow canal.

Answer:

Spinal cord.