What is the correct Lewis dot structure for C? 
Definitions:
Arrector Pili Muscles
Small muscles attached to hair follicles that, when contracted, cause the hair to stand on end, known as "goosebumps."
Keratinization
The process by which cells fill with keratin protein, die, and form tough, protective layers in the skin, hair, and nails.
Melanin
A pigment found in the skin, hair, and eyes that is responsible for color and protection against UV radiation.
Third-Degree
A term often associated with burns, indicating the most severe type that damages all layers of skin and possibly underlying tissues.
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