The odd one out in your list is **C. Pellagra**. Here's why:
- **A. Calciferol**: This is another name for Vitamin D.
- **B. Thiamin**: This is also known as Vitamin B1.
- **D. Blotin**: This seems to be a typo. If you meant Biotin, it's also known as Vitamin B7.
On the other hand, **C. Pellagra** is not a vitamin but a disease caused by a deficiency of Niacin, also known as Vitamin B3. So, Pellagra is the odd one out as it's a disease, while the others are vitamins.
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Answer:
The odd one out in your list is **C. Pellagra**. Here's why:
- **A. Calciferol**: This is another name for Vitamin D.
- **B. Thiamin**: This is also known as Vitamin B1.
- **D. Blotin**: This seems to be a typo. If you meant Biotin, it's also known as Vitamin B7.
On the other hand, **C. Pellagra** is not a vitamin but a disease caused by a deficiency of Niacin, also known as Vitamin B3. So, Pellagra is the odd one out as it's a disease, while the others are vitamins.