A student is examining a current map of the world. Which question might the student ask about the map if she wants to focus on an economic historical theme?

AWhat countries make up Oceania?
BWhat countries in Europe exist today that did not exist 100 years ago?
CWhat countries wee the first to allow women to vote?
DWhat countries in Africa have successful manufacturing industries?

Verified Answer :

The answer is D because B, A, and C aren't it.

I was also focusing on D however question is referring to student examining map of the "world" and answer "D" only refers to "Africa."