Which of the following pairs describing structures of teeth is mismatched?

A) Crown - enamel
B) Root - root canal
C) Alveoli - periodontal ligament
D) Pulp cavity - cementum
E) Apical foramen - blood supply

Pulp Cavity

The central part of a tooth containing nerves and blood vessels, vital for the tooth's nutrition and sensitivity.

Apical Foramen

Opening at the apex of the root of a tooth; gives passage to the nerve and blood vessels.

Cementum

Layer of modified bone covering the dentin of the root and neck of a tooth; blends with the fibers of the periodontal membrane.