Explanation:

• Ob-Basin – Russia: The Ob River Basin in Russia is a major geological region, and Western Siberia (including areas near the Ob Basin) has significant coal, oil, and natural gas It is a key coal-bearing region.
• Natal is a region in South Africa, not Australia. South Africa’s Natal region has some coal reserves, but Natal is not in Australia, so this match is geographically incorrect.
• Singrauli is one of the major coal mining regions in India, located across Madhya Pradesh and Uttar Pradesh. It is part of the Central Indian Coal Belt.
• Sichuan coal reserve is located in China.

Source:https://lotusarise.com/distribution-of-key-natural-resources-across-the-world-upsc/