RAS question
Which country has the largest area in Africa?
Correct answer: (B) Algeria.
Algeria is the largest country in Africa by area.
Explanation
Algeria is the right answer because the World Bank Group identifies it as the largest African country, with an area of about 2.38 million sq km. The ranking matters because Sudan used to be Africa's largest country before South Sudan separated from it in 2011; after that territorial change, Algeria became the continent's largest by area. DR Congo is important for comparison because it is the second largest African country, but it does not overtake Algeria. The question is therefore testing present-day political geography, not population size or older pre-2011 rankings.
Why the other options are wrong
- (A) Nigeria is Africa's most populous country in this framing, but the question asks for largest area, where Algeria leads.
- (C) DR Congo is the second largest country in Africa by area, so it is close in rank but still below Algeria.
- (D) Sudan was the largest before South Sudan separated in 2011, but that older ranking no longer applies.
Concept
This tests the map-based world geography concept of country size by area, especially how political boundary changes alter rankings. It recurs in RAS because Africa's largest countries, population leaders, and post-2011 Sudan-South Sudan change are common factual traps.