Economic and Social Affairs states that ....... of the world's 8.2 billion people now live in cities, a significant increase since 1950.

Question

Accepted Answer

45%. C is correct because according to the source material, 45% of the world's population lives in cities. A is incorrect because it states a different percentage than what is cited. B is incorrect because it provides a figure that does not match the given data point. D is incorrect because this percentage is also different from the stated statistic.