Which of the following water is suitable for drinking?

Options

A. Soft water
B. Demineralized water
C. Potable water
D. Distilled water

Explanation

To determine which type of water is suitable for drinking, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Identify the Options**:
- The options given are:
1. Soft water
2. Demineralised water
3. Potable water
4. Distilled water

2. **Evaluate Soft Water**:
- Soft water is water that has low concentrations of calcium and magnesium ions.
- **Reasoning**: While it is low in hardness, it may still contain impurities or pathogens, making it unsuitable for drinking.
- **Conclusion**: Soft water is **not suitable** for drinking.

3. **Evaluate Demineralised Water**:
- Demineralised water is water from which all minerals have been removed.
- **Reasoning**: Minerals are essential for bodily functions. Without these minerals, the water is not beneficial for health.
- **Conclusion**: Demineralised water is **not suitable** for drinking.

4. **Evaluate Potable Water**:
- Potable water is defined as water that is safe for human consumption.
- **Reasoning**: This type of water meets health standards and is free from harmful contaminants.
- **Conclusion**: Potable water is **suitable** for drinking.

5. **Evaluate Distilled Water**:
- Distilled water is purified water that has been boiled to produce steam and then condensed back into liquid.
- **Reasoning**: While it is pure, it lacks essential minerals and electrolytes, which can disrupt the body's balance.
- **Conclusion**: Distilled water is **not suitable** for drinking.

6. **Final Conclusion**:
- After evaluating all the options, the only water that is suitable for drinking is **potable water**.

### Answer:
The suitable water for drinking is **potable water**.

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