Answer:
Correct answer is A. Asia and Africa
Explanation:
It is estimated that in this period more than half population lived only in Asia, therefore A is the only correct answer.
Those percentage are going from 65 up to 70 percent. In the same time Africa had around 10 percent of world population.
Europe had up to 20 percent of world population, while Americas had only around 2 percent.
Oceania had less than one percent.
