Which of the Following Best Describes Human Population Growth from Early

Which of the following best describes human population growth from early times to the present day?

A) early rapid growth which has leveled off to a nearly constant rate in the last 20 years
B) slow,steady growth throughout the period
C) rapid,explosive growth throughout the period
D) slow,uneven growth until the 1800s,then rapid growth
E) early rapid growth which has increased rapidly in the last 20 years