Dehydration caused by the deficiency of

Options

A. iron
B. water
C. calcium
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Dehydration**: Dehydration occurs when the body loses more fluids than it takes in. This imbalance leads to a deficiency of water in the body.

2. **Identifying Symptoms**: Common symptoms of dehydration include:
- Increased thirst
- Dry mouth
- Dry skin
- Decreased urine output
- Reduced sweating

3. **Recognizing the Cause**: The primary cause of dehydration is the deficiency of water. While other nutrients like iron and calcium are important for various bodily functions, they do not directly cause dehydration.

4. **Conclusion**: Based on the understanding that dehydration is primarily due to a lack of water intake, the correct answer to the question is "Water Deficiency".

5. **Recommendation for Treatment**: In cases of dehydration, it is important to rehydrate the body. This can be done by consuming Oral Rehydration Solutions (ORS) or saline, which help replenish lost fluids and electrolytes.

**Final Answer**: Dehydration is caused by the deficiency of water.

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