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Earlier discussion
2 older comments kept for context.
Esther
The correct answer is A
Oluwaseun Adeyemi
The thoracic vertebrae are a group of twelve small bones that form the vertebral spine in the upper trunk. Thoracic vertebrae are unique among the bones of the spine in that they are the only vertebrae that support ribs and have overlapping spinous processes. Like all other vertebrae, the thoracic vertebrae help to support the weight of the upper body and protect the delicate spinal cord as it runs through the vertebral canal.