1. Correct Answer: Option C: All the three
 2. Explanation:
     ● Pair 1 is correct: Botswana is renowned as one of the world’s largest producers of diamonds by value. The discovery of diamonds in the 1960s significantly boosted its economy, and the country has effectively managed its diamond resources through partnerships, notably with De Beers.  
     ● Pair 2 is correct: Chile is part of the “Lithium Triangle” with Argentina and Bolivia, possessing some of the largest lithium reserves globally. These reserves are primarily found in salt flats like Salar de Atacama, and lithium is crucial for batteries in electric vehicles and electronics.  
     ● Pair 3 is correct: Indonesia is the world’s largest producer of nickel, with extensive reserves. It plays a vital role in the global nickel supply chain, essential for stainless steel production and electric vehicle batteries. Indonesia has also implemented export bans to promote domestic processing.