单项选择题

Questions 22 and 23 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. Japan’s central bank is concerned about the weakness of Japanese stock prices because

A.they are the lowest in nineteen years.
B.they are lower than that of nine years ago.
C.they have been lowed for ninety years.
D.they are the lowest ever in ninety years.