Which of the following statements is true regarding costal facets?

• A. Costal facets are located on the transverse processes of the thoracic vertebrae.
• B. Costal facets articulate with the sternum, providing stability to the chest cavity.
• C. Costal facets are responsible for articulating with the heads of the ribs.
• D. Costal facets are found on both the superior and inferior surfaces of the thoracic vertebrae.

Answer: (C)