The correct answer is Option (4) → Vitamin K
Classification of Vitamins
Vitamins are generally classified into two categories based on their solubility:
- Fat-Soluble Vitamins: These are soluble in fats (lipids) and organic solvents but insoluble in water. They are stored in the body's liver and fatty tissues.
- Examples: Vitamin A, Vitamin D, Vitamin E, and Vitamin K.
- Water-Soluble Vitamins: These dissolve in water and are not stored in the body to a significant extent, meaning they must be supplied regularly in the diet.
- Examples: Vitamin C (Ascorbic acid) and the Vitamin B complex group (which includes Thiamine and Riboflavin).
Analysis of Options
- Thiamine ($B_1$): Water-soluble.
- Riboflavin ($B_2$): Water-soluble.
- Ascorbic acid (Vitamin C): Water-soluble.
- Vitamin K: Fat-soluble.
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