【单选题】

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 onANSWER SHEET TWO.

Questions 6 and 7 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. Why does Nigeria face chronic fuel shortagesA．Because the government sells most of the oil abroaD、
Because the country faces chronic difficulties in its oil production.
C．Because the oil price is too low.
D．Because the oil price is increasing.