Final answer:
The tubercle of the 7th rib articulates with the transverse process of the same numbered thoracic vertebra, which is the transverse process of vertebra T7.
Step-by-step explanation:
The tubercle of the 7th rib articulates with the transverse process of a thoracic vertebra. Based on the typical anatomical layout, the rib tubercle of a given rib usually articulates with the transverse process of the vertebra that bears the same number. Therefore, the tubercle of the 7th rib would articulate with the transverse process of vertebra T7 (option E), not the body of any vertebrae.
The tubercle of the 7th rib articulates with the transverse process of vertebra T7. Thoracic vertebrae have superior and inferior articular facets on the vertebral body for articulation with the head of a rib, and a transverse process facet for articulation with the rib tubercle.