Questions 6 & 7 are based on the following news item. At the end of the news item, you will be given 10 seconds to answer each question.
Now listen to the news. Why Chang’ aa is popular in poor areas
A．It is very cheap. B．It can make people highly dizzy. C．It provides way for poor people to escape from the misery of slum living. D．People who sell it can get great profit.