Which structure in mammals offers a strong and independent support system for teeth?

Explanation

The periodontal ligament is the fibrous connective tissue that firmly anchors the tooth to the surrounding alveolar bone, providing both strength and independent suspension. Although alveolar sockets house the teeth, they do not provide the flexible support that the periodontal ligament does. Cementum covers the tooth root but does not suspend the tooth independently. Gubernacular cords and gingival tissue have different roles unrelated to tooth suspension.