单项选择题

Questions 9 and 10 are based on the following news. At the end of the news item, you will be given 20 seconds to answer the questions. Now listen to the news. The disadvantages of urbanization mentioned in the report include the following EXCEPT

A. pressure on cities to provide housing and services.
B. slower social and economic progress than before.
C. violence resulted from worsening inequalities.
D. cities’ expansion into rural areas.