Which of the following statements about the role of the hypodermis in thermoregulation is accurate?

• A. The hypodermis actively secretes sweat to cool the body.
• B. The hypodermis has a high concentration of melanin to absorb heat.
• C. The hypodermis acts as an insulator by trapping heat through its adipose tissue.
• D. The hypodermis contains numerous nerve endings that regulate blood flow to the skin.