单项选择题

Questions 6 and 7 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. According to the news, US consumer confidence ______.

A.slipped in five successive months
B.slipped in seven successive months
C.has dropped to its lowest level in five years
D.slipped one more point this month