The question is asking to match countries with their respective capital cities.

Option 1: Argentina with Buenos Aires

Option 2: Brazil with Sao Paulo

Option 3: Peru with Lima

Option 4: Venezuela with Caracas

The correct answer provided is option 2 (Brazil with Sao Paulo). This means that Sao Paulo is the capital city of Brazil.

To understand why this answer is correct, we can look at the other options:

Option 1 (Argentina with Buenos Aires) is incorrect because Buenos Aires is the capital city of Argentina, not Brazil.

Option 3 (Peru with Lima) is incorrect because Lima is the capital city of Peru, not Brazil.

Option 4 (Venezuela with Caracas) is incorrect because Caracas is the capital city of Venezuela, not Brazil.

Therefore, option 2 is the correct match of Brazil with Sao Paulo as its capital city.