Assertion: Polluted water can cause several communicable diseases.
Reason: The causative agents of communicable diseases occur as pollutants in water.

Options

A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Polluted water can cause several communicable diseases."
- This is true because polluted water often contains harmful microorganisms (pathogens) that can lead to diseases when ingested or come into contact with humans.

2. **Understanding the Reason**:
- The reason states that "The causative agents of communicable diseases occur as pollutants in water."
- This is also true as many pathogens, such as bacteria and viruses, can be found in polluted water, making it a source of communicable diseases.

3. **Analyzing the Relationship**:
- Now, we need to determine if the reason provided explains the assertion correctly.
- Since the reason identifies that the pathogens (causative agents) are indeed present in polluted water and that these pathogens can cause communicable diseases, it logically supports the assertion.

4. **Conclusion**:
- Both the assertion and reason are true, and the reason correctly explains the assertion.
- Therefore, the answer is that both statements are true, and the reason explains the assertion.

### Final Answer:
Both the assertion and the reason are true, and the reason explains the assertion correctly.

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