Refer to the Figure Showing a Mammalian Tooth

Refer to the figure showing a mammalian tooth. Based on the figure, which statement about mammalian teeth is true?

A) The crown is the part of the tooth below the gum line.
B) Dentine is present in the crown but not the root.
C) Nerves and blood vessels occur in the pulp cavity, which is the innermost layer of the tooth.
D) Cement holds the tooth in the jawbone and produces the dentine.
E) Enamel covers the crown of the tooth and consists largely of calcium carbonate.