Option 4 is the correct answer. In this question, we have a list of deserts in List I and a list of countries in List II. We need to match the desert with the corresponding country.

List I contains the deserts:

A. Kalahari

B. Namib

C. Nubian

D. Atacama

List II contains the countries:

1. Angola

2. Sudan

3. Botswana

4. Chile

In order to match the correct desert with the corresponding country, we need to look for the correct pairing.

In option 1, the pairing is 4-2-1-3. This means that Kalahari desert is matched with Sudan, Namib desert is matched with Angola, Nubian desert is matched with Botswana, and Atacama desert is matched with Chile.

In option 2, the pairing is 3-2-I-4. The "I" is not a valid country, so this option is incorrect.

In option 3, the pairing is 4-1-2-3. This means that Kalahari desert is matched with Angola, Namib desert is matched with Sudan, Nubian desert is matched with Botswana, and At