What is the problem of the gigantic cities in Lati

单项选择题

In this section you will hear everything ONCE ONLY. Listen carefully and then answer the questions that follow. Mark the correct answer to each question on your coloured answer sheet.
Questions 1 to 5 are based on an interview with an expert on the urban problem. At the end of the interview you will be given I0 seconds to answer each of the following five questions.
Now listen to the interview.

What is the problem of the gigantic cities in Latin America

A．These cities grow relatively slowly.
B．These cities’ growth is parallel to their industrial growth.
C．These cities have grown much faster than industry.
D．These cities are short of labor force.