Which region of the vertebral column is composed of 7 vertebrae?

The correct answer is c. Cervical.

The cervical region of the vertebral column consists of 7 vertebrae, labeled C1 to C7. This region is located at the top of the spinal column and supports the skull while allowing a range of head movements. If you have further questions or need more assistance, feel free to ask or check the extended services page for more in-depth help!