Vitamin D is called

Options

A. Ascorbic acid
B. Calciferol or ergocalciferol
C. Thiamine
D. Riboflavin

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the name of Vitamin D.

2. **Review the Options**: The given options are:
- Ascorbic acid
- Calciferol
- Ergocalciferol
- Thiamine
- Riboflavin

3. **Recall the Names of Vitamins**:
- Ascorbic acid is known as Vitamin C.
- Thiamine is known as Vitamin B1.
- Riboflavin is known as Vitamin B2.
- Ergocalciferol is known as Vitamin D2.
- Calciferol is known as Vitamin D3.

4. **Determine the Correct Name for Vitamin D**:
- Vitamin D can refer to two forms:
- Vitamin D2, which is ergocalciferol.
- Vitamin D3, which is cholecalciferol (or simply calciferol).
- Therefore, Vitamin D is commonly referred to as calciferol.

5. **Conclusion**: The correct answer is **Calciferol** (which can also refer to Ergocalciferol for Vitamin D2).

**Final Answer**: Vitamin D is called **Calciferol**.

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