Multiple choice general knowledge

What is the main component of hair?

  1. A type of protein called keratin.

  2. A type of lipid called trans-fatty acid.

  3. A type of mineral called silica.

  4. None Of the Above

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A Correct answer
Explanation

Hair is primarily composed of keratin, a tough fibrous protein that also makes up nails and the outer layer of skin. Keratin provides strength and protection to hair strands. Trans-fatty acids are lipids involved in cellular processes, not hair structure.