Assertion:- A simple microscope may have different magnification for different persons.
Reasons:- All persons may not have the same near point distance of 25cm

Options

A. If both Assertion `&` Reason are True `&` the Reason is a correct explanation of the Assertion.
B. If both Assertion `&` Reason are True but Reason is not a correct explanation of the Assertion.
C. If Assertion is True but the Reason is False.
D. If both Assertion `&` Reason are False.

Answer

### Step-by-Step Solution

1. **Understanding the Assertion**: The assertion states that a simple microscope may have different magnifications for different persons. This is true because the magnification of a microscope depends on the near point distance of the observer.

**Hint**: Consider how the near point distance affects the ability to focus on the image produced by the microscope.

2. **Understanding the Reason**: The reason provided states that all persons may not have the same near point distance of 25 cm. This is also true, as the near point can vary from person to person, particularly between children and adults.

**Hint**: Recall the definition of the near point and how it can differ among individuals.

3. **Linking Assertion and Reason**: The assertion is supported by the reason. If different persons have different near point distances, then the magnification produced by the microscope will indeed vary for each individual.

**Hint**: Think about how magnification is calculated and how it relates to the near point distance.

4. **Conclusion**: Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, we can conclude that the assertion is true and the reason is true, and the reason is the correct explanation for the assertion.

**Hint**: Consider the logical relationship between the assertion and the reason to finalize your conclusion.

### Final Answer
- **Assertion**: True
- **Reason**: True
- **Explanation**: The reason explains the assertion correctly.