Concept:The tooth has three main parts: crown, neck, and root.
The root is the part that anchors the tooth inside the jaw bone.
Explanation:The crown is the top part of the tooth visible above the gum.
The neck is the narrow region where the crown meets the root.
The root is the lower portion that extends into the jaw bone and keeps the tooth fixed.
The gum is soft tissue around the tooth, but it is not embedded in the jaw bone.
Since the root is the part buried in the jaw bone, it is the correct choice.
Answer:C. Root