Assertion: Rest of a body is a relative term.
Reason: Motion of a body may be absolute term.

Options

A. a.If both assertion `&` Reason are True `&` the Reason is a corrrect explanation of the Asserion.
B. b.If both Assertion `&` Reason are True but Reason is not correct explanation of the Assertion.
C. c.If Assertion is Trie but the Reason is False.
D. d.If both Assertion `&` Reason are false

Answer

To solve the question, we need to analyze the assertion and the reason provided, and determine their validity.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Rest of a body is a relative term."
- This means that whether an object is at rest or in motion depends on the observer's frame of reference. For example, a person sitting in a moving train may see another person sitting next to them as at rest, while an observer on the ground sees both as moving.

2. **Understanding the Reason**:
- The reason states that "Motion of a body may be an absolute term."
- This implies that motion can be defined independently of any observer. However, in physics, motion is also relative. For instance, an object moving in space can be at rest relative to one observer and in motion relative to another.

3. **Analyzing the Relationship**:
- Both rest and motion are relative concepts. For example, if two objects are moving at the same velocity, one can be at rest with respect to the other, even though both are moving relative to a third object (like the Earth).
- Therefore, the assertion is true, while the reason is false because motion, like rest, is also relative.

4. **Conclusion**:
- The assertion is true, and the reason is false. Thus, the correct answer to the question is that the assertion is correct, but the reason is incorrect.

### Final Answer:
- Assertion: True
- Reason: False