Assertion : The process of loosening and turning the soil is called tilling or ploughing.
Reason : Loose soil traps lot of water which is used for absorption by roots.

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

To solve the question, we need to analyze the assertion and the reason provided:

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "The process of loosening and turning the soil is called tilling or ploughing."
- This is a true statement as tilling (or ploughing) is indeed the agricultural practice used to prepare the soil for planting by loosening and turning it.

2. **Understanding the Reason**:
- The reason states that "Loose soil traps a lot of water which is used for absorption by roots."
- This statement is also true. Loose soil has better water retention capabilities, allowing it to hold more water, which is essential for plant roots to absorb.

3. **Analyzing the Relationship**:
- While both the assertion and reason are true, we need to determine if the reason correctly explains the assertion.
- The assertion explains what tilling is, while the reason explains one of the benefits of having loose soil. However, the reason does not directly explain why tilling is done; it merely states a consequence of it.

4. **Conclusion**:
- Since both the assertion and reason are true, but the reason does not provide a correct explanation for the assertion, the correct answer is:
- **Option 2**: Both assertion and reason are true, but the reason is not the correct explanation of the assertion.