Assertion : The forces of friction arise due ot gravitational attraction.
Reason : The gravitational forces can be attractive and repulsive.

Options

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

Answer

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

### Step 1: Analyze the Assertion
The assertion states: "The forces of friction arise due to gravitational attraction."

- **Explanation**: Friction is a force that opposes the relative motion of two surfaces in contact. It arises from the interactions at the molecular level between the surfaces. When two surfaces are in contact, the molecules on the surfaces attract each other, forming temporary bonds. This molecular attraction is what gives rise to friction, not gravitational attraction. Therefore, the assertion is incorrect.

### Step 2: Analyze the Reason
The reason states: "The gravitational forces can be attractive and repulsive."

- **Explanation**: Gravitational force is a fundamental force of nature that acts between two masses. It is always attractive and never repulsive. This means that the reason provided is also incorrect.

### Step 3: Conclusion
Since both the assertion and the reason are incorrect, the correct answer to the question is that both statements are false.

### Final Answer
Both assertion and reason are incorrect.

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