Assertion : Alloys of magnetic substances are used to make artificial magnets.
Reason : Alloys make the magnets strong.

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 assertion is false but reason is true.

Explanation

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

### Step 1: Understand the Assertion
The assertion states: "Alloys of magnetic substances are used to make artificial magnets."
- This is true because artificial magnets are often made from alloys that have magnetic properties, such as iron, nickel, and cobalt. These materials can be combined to create stronger magnets.

### Step 2: Understand the Reason
The reason states: "Alloys make the magnets strong."
- This is also true. Alloys can enhance the magnetic properties of the materials used, leading to stronger magnets. For example, the combination of iron and steel in certain proportions can create a magnet with higher strength and better retention of magnetic properties.

### Step 3: Determine the Relationship
Now we need to determine if the reason provided is a correct explanation of the assertion.
- Since alloys are indeed used to make artificial magnets and they do make these magnets stronger, we can conclude that the reason is a correct explanation of the assertion.

### Conclusion
Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the answer to the question is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

### Final Answer
- Assertion: True
- Reason: True
- Explanation: The reason is the correct explanation of the assertion.

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