Consider the following pairs:Country Resource-rich inI.Botswana : DiamondII.Chile : LithiumIII.Indonesia : NickelIn how many of the above rows is the given information correctly matched?

1. A

   Only one

   Only one. All three country–resource pairs are keyed.

2. B

   Only two

   Only two. Under-counts.

3. C

   All the three

   All the three. Botswana–diamond, Chile and the third pair are all correctly matched.

4. D

   None

   None. All three hold.

Summary. Official Set A key is (c) all three. Botswana is diamond-rich; Chile is copper-lithium country; the third pair is also a standard resource match. All three are correct.