Exp) option c is the correct answer.

Pair 1 is correct. Botswana is one of the world’s largest producers of diamonds by value. The discovery of diamonds in the 1960s transformed its economy. The country has maintained stable governance and efficient management of its diamond resources, especially through its partnership with De Beers.

Pair 2 is correct. Chile forms part of the “Lithium Triangle” along with Argentina and Bolivia. It has some of the largest lithium reserves in the world, primarily extracted from salt flats (like Salar de Atacama). Lithium is vital for batteries in electric vehicles and electronics.

Pair 3 is correct. Indonesia is the world’s largest producer of nickel. It holds vast reserves and has become a major player in the global nickel supply chain, crucial for stainless steel production and electric vehicle batteries. The country has also imposed export bans to encourage domestic processing.

Source: https://www.thehindu.com/business/botswana-the-country-with-the-biggest-diamonds-gets-an-improved-10-year-deal-with-miner-de-beers/article69265986.ece#:~:text=Botswana%2C%20a%20sparsely%20populated%20and,to%20the%20International%20Monetary%20Fund. ; https://www.pib.gov.in/PressReleaseIframePage.aspx?PRID=1996380#:~:text=Argentina%20is%20the%20part%20of,th%20largest%20production%20in%20world. https://www.downtoearth.org.in/mining/booming-indonesian-nickel-industry-faces-challenges-ahead