Pretty sure it is a D. Nail. A cuticle is that thin layer of dead skin at the base of fingernails and toenails. Hopefully this helped you. :)
Answer: 1-Orthopnea, 2-Cyanosis, 3-Hypoxia, 4-Tachypnea, 5-Rhonchi, 6-Rales, 7-Thoracentesis, 8-Sputum, 9-Hemoptysis, 10-Wheezing, 11-Rhinorrhea, 12-Alveoli
Explanation: