Assertion : The electrical wires are covered with plastic and rubber like materials .
Reason : Insulators do not allow the flow of current through them .

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 reason is false .
D. If assertion is false but reason is true .

Explanation

To analyze the assertion and reason provided in the question, we will break down the statements and evaluate their truthfulness and relationship.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states: "The electrical wires are covered with plastic and rubber-like materials."
- This statement is true. Electrical wires are indeed covered with insulating materials like plastic and rubber to ensure safety.

2. **Understanding the Reason**:
- The reason states: "Insulators do not allow the flow of current through them."
- This statement is also true. Insulators are materials that do not conduct electricity, meaning they do not allow electric current to pass through them.

3. **Connecting Assertion and Reason**:
- The assertion explains why electrical wires are covered with plastic and rubber: these materials are insulators.
- The reason provides the definition of insulators, which supports the assertion. Since insulators do not allow current to flow, covering wires with these materials prevents electric shocks and enhances safety.

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

### Final Answer:
Both the assertion and reason are true, and the reason is the correct explanation of the assertion.