Which of the Following Statements Is not True About the Population

Which of the following statements is not true about the population?

A) Over the next century, population growth is expected to be greatest in developed nations.
B) For many thousands of years, population growth was gradual.
C) Industrial production would have to quintuple over the next 40 years in order to maintain the same living standard that people have now, given expected population growth.
D) Just 10,000 years ago, the earth was home to no more than 10 million humans, scattered in small settlements.