Which of the Following Urbanization Trends Is True

Which of the following urbanization trends is true?

A) As of 2008, 75% of the world's population lives in urban areas for the first time in history.
B) Currently, most urban growth in the world is occurring in developing countries.
C) Cities in developing nations tend to have more females while cities in highly developed countries often have a higher ratio of males to females.
D) Urbanization in developed countries is increasing at a more rapid rate than in developing countries.
E) According to the United Nations, there are almost 100 cities worldwide with a population of at least 1 million inhabitants.