Use Case C to Answer the Following Questions

Use Case C to answer The Following questions
CASE C
A 12-year-old client with orthodontics has generalized healthy gingiva that is coral pink and stippled. The orthodontist has stated that the tooth movement is on schedule. Some recession is noted on the maxillary left canine and the first premolar. The first premolar demonstrates some mobility. Orthodontic tooth movement involves the function of the periodontal ligament, cementum, and alveolar bone.
-The color of the gingiva may be attributed to all of the following EXCEPT one. Which one is the EXCEPTION?

A) Keratinization
B) Connective tissue projections
C) Thickness of the epithelium
D) Blood supply
E) Pigmentation