Questions 8 to 10 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each question.
Now listen to the news. How are sleep and dreams related with people’s performances
A．The less sleep people have, the better they perform. B．The fewer dream characters, the happier people are. C．The level of one’s moods rises and falls according to his dream characters. D．The less dozy, the more clear-thinking.