• Vertebral Ligaments in Domestic Animals:
• The Dorsal Longitudinal Ligament (Ligamentum longitudinale dorsale) runs along the floor of the vertebral canal on the dorsal surface of the vertebral bodies from the axis to the sacrum.
• It is particularly strong, thick, and wide in the thoracic region, where it reinforces the intervertebral discs against intense compressive and rotational forces exerted by the rib cage and locomotion.
• nalysis:
• (Thoracic area): Correct.

Correct option: (1) Thoracic area