Nervousness anaemia is caused by the deficiency of vitamin

Options

A. `B_(1)`
B. `B_(2)`
C. `B_(6)`
D. `B_(12)`

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks which vitamin deficiency causes nervousness anemia. We need to identify the specific vitamin related to this condition.

2. **Identifying the Options:**
The options provided are:
- A) B1
- B) B2
- C) B6
- D) B12

3. **Researching Nervousness Anemia:**
Nervousness anemia is a type of anemia that can be associated with neurological symptoms. This suggests that the vitamin deficiency might be linked to the nervous system.

4. **Connecting Vitamins to Symptoms:**
- Vitamin B1 (Thiamine) is important for energy metabolism but is not primarily linked to nervousness anemia.
- Vitamin B2 (Riboflavin) is essential for energy production and cellular function but does not directly relate to nervousness anemia.
- Vitamin B6 (Pyridoxine) is involved in amino acid metabolism and neurotransmitter synthesis but is not specifically known for causing nervousness anemia.
- Vitamin B12 (Cobalamin) is crucial for red blood cell formation and neurological function. A deficiency in B12 can lead to anemia and neurological problems.

5. **Conclusion:**
Based on the information gathered, the deficiency of Vitamin B12 is the cause of nervousness anemia. Therefore, the correct answer is **D) B12**.

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