Answer
The correct answer is $a. the gingiva.$
Work Step by Step
The correct answer is $a. the gingiva$.
The gingiva, also known as the gums, is a periodontal tissue that surrounds and supports the teeth, covering the jawbone. It provides protection to the tooth roots and assists in maintaining the tooth in place within the oral cavity.
The other options mentioned are components of teeth:
$b. Enamel$ - Enamel is the hard, outermost layer of the tooth, providing protection against wear and tear.
$c. Cementum$ - Cementum is a calcified tissue that covers the tooth's root and helps anchor it within the jawbone by attaching to the periodontal ligament.
$d. Pulp$ - The pulp is the soft innermost part of the tooth that contains blood vessels, nerves, and connective tissue.
$e. Dentin$ - Dentin is a hard tissue underlying the enamel and forming the bulk of the tooth's structure. It is softer than enamel but harder than pulp.
So, among the options provided, $the gingiva$ is the periodontal tissue.
