Human vertebral formula is

The human vertebral formula represents the segments of the spinal cord.

The spinal cord is divided into five segments by cervical spine, thoracic spine, lumbar spine, sacrum and coccyx.

In humans, the cervical is seven in number, thoracic segment is 12 in number, lumbar and sacral segments are five in number each and coccygeal are four in number.

The correct answer option is D, C₇T₁₂L₅S₅Co₄