Questions 7 to 8 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions.
Now listen to the news.
The diplomatic difference between France and the United States is mainly on ______.

A．2 people.
B．30 people.
C．28 people.
D．1200 people.

A．The need to control population both in those underdeveloped countries and in developed countries.
B．How to control population in Europe.
C．Scarcity of food and other resources in the world.
D．Population and environment.