Which best describes the mucogingival line within the oral cavity?
A. A depth of 1 to 3mm based on the size of the patient and whether it is a dog or cat.
B. The indentation in the gum tissue that separates the attached gingival tissue and the alveolar mucosal tissue
C. The space between the marginal gingival tissue and the tooth itself.
D. The very edge of the gum tissue that should be 1-2 mm coronal to the level of alveolar bone
