Read the Following Scenario and Answer the Questions Below

Read the following scenario and answer the questions below.
Population growth is at the root of many serious environmental problems. From the ancient Babylonians thousands of years ago, to Thomas Malthus hundreds of years ago, to present day neo- Malthusians, humans seem to possess an awareness of Earth's limitations in the face of growing populations. Today, our ability to accurately quantify, monitor, and control population growth is very sophisticated. We can measure growth and make predictions about world growth with mathematical and computer models. Can we prevent disaster?
-Because of the success of China's population control programs,_____________________.

A) there is a younger population in China today
B) China's population growth rate has dropped below replacement levels
C) European nations have instituted similar programs
D) environmental problems in China have been virtually eliminated
E) African nations have instituted similar programs