Worldwide, the Fastest Growing Cities Today Are Mostly _______________

Worldwide, the fastest growing cities today are mostly _______________ .

A) the megacities such as Tokyo, Mexico City, and New York City
B) large cities worldwide, such as Paris, London, and Los Angeles
C) cities in the northern United States, such as Chicago, Illinois, and Portland, Oregon
D) small cities in the southern United States, such as Austin, Texas, and Raleigh, North Carolina
E) cities in developing nations, including Cairo, Egypt, and Mumbai (Bombay) , India