Sources of Vitamin B12 are

Correct option is B

Ans (b)
Sol. Explanation:
· Vitamin B12 (cobalamin) is a water-soluble vitamin that is primarily found in animal-based foods, such as dairy products (milk, cheese, yogurt) and yeast extracts (such as marmite). It is essential for red blood cell production and nervous system health.
· Mushrooms, grains, and nuts (Option a) do not typically contain significant amounts of Vitamin B12. These foods are more likely to contain other vitamins and minerals, but not B12.
· Bread, rice, broccoli, and beans (Option c) are also not significant sources of Vitamin B12. They may contain other B vitamins, but not B12 in notable quantities.
· Therefore, Option (d), "All of these," is incorrect because only dairy products and yeast extracts provide Vitamin B12.