Concept:A coherent paragraph needs a logical flow. The first sentence states the main goal, then the other sentences explain the method, its benefits, and additional steps.
Explanation:Sentence 2 comes first because it introduces the core aim: reducing reliance on high-carbon power to fight climate change.
Sentence 1 comes next as it describes the key method to achieve that aim — switching to solar, wind, and geothermal energy.
Sentence 3 follows because it lists the benefits of this energy transition, such as lower emissions and better air quality.
Sentence 4 comes last as it adds extra measures like energy efficiency in buildings and transport to further cut demand.
This gives the order 2 – 1 – 3 – 4, which matches Option A.
Answer:2, 1, 3, 4 (Option A)