单项选择题

Questions 7 to 8 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions.
Now listen to the news.

What did the protesters call on the government to do

A.To scrap new taxes.
B.To convene a convention to write a new constitution.
C.To stop harassing students and halt ethnic violence.
D.All of the above.