Correct Answer: (c) 4, 1, 2, 3
Solution:When the question was asked option (c) was correct answer. According to the IAEA data as of March 10, 2024, the details of the major countries in the descending order of nuclear plants (Operational) are as follows - 1. USA, 2. France, 3. China, 4. Russia, 5. Republic of Korea.