A : A negatively charged body means that the body has gained electrons while a positively charged body means the body has lost some of its electrons.
R : Charging process involves transfer of electrons.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
B. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
C. If Assertion is true statement but Reason is false, then mark (3).
D. If both Assertion and Reason are false statements, then mark (4).

Answer

To solve the assertion-reason question, we need to analyze both the assertion (A) and the reason (R) statements provided.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that a negatively charged body has gained electrons, while a positively charged body has lost electrons.
- This is based on the fundamental concept that electrons carry a negative charge. When an object gains electrons, it has more negative charges than positive charges, resulting in a net negative charge. Conversely, when an object loses electrons, it has more positive charges than negative charges, resulting in a net positive charge.

2. **Understanding the Reason (R)**:
- The reason states that the charging process involves the transfer of electrons.
- This is true because the process of charging an object typically involves either gaining or losing electrons. The transfer of electrons is what leads to the creation of a charge imbalance, resulting in either a positive or negative charge.

3. **Analyzing the Relationship Between A and R**:
- The assertion (A) is correct as it accurately describes the relationship between charge and electron transfer.
- The reason (R) is also correct and provides an explanation for the assertion. It explains how the charging process occurs through the transfer of electrons.

4. **Conclusion**:
- Since both the assertion and the reason are correct, and the reason correctly explains the assertion, we can conclude that both statements are true and that the reason supports the assertion.

### Final Answer:
Both A and R are true, and R is the correct explanation of A.

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