Analysis of Assertion (A)

Assertion (A) states that coal is the world's most abundant, non-renewable fossil fuel and requires replacement when exhausted. This is factually correct. Coal is a major fossil fuel source, finite in supply, and will eventually be depleted, necessitating alternative energy solutions.

Analysis of Reason (R)

Reason (R) posits that energy conservation reduces energy demands without noticeably impacting living standards. This is also a correct statement. Implementing energy-saving measures can decrease overall energy consumption while maintaining or improving quality of life.

Relationship Between Assertion (A) and Reason (R)

While both statements (A) and (R) are true, Reason (R) does not directly explain Assertion (A). Assertion (A) focuses on the characteristics of coal (abundance, non-renewability, eventual exhaustion) and the need for alternatives. Reason (R) discusses the general benefits and feasibility of energy conservation. Energy conservation is a strategy to manage energy use, including non-renewable resources, but it doesn't explain *why* coal is abundant or non-renewable, nor the fundamental reason it needs replacement (its finite nature). Therefore, (R) is correct but not the correct explanation for (A).

Conclusion

Based on the analysis, both Assertion (A) and Reason (R) are correct statements. However, Reason (R) does not provide the correct explanation for Assertion (A).

The most appropriate answer is Option B: Both (A) and (R) are correct but (R) is not the correct explanation of (A).