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.
Negotiations come to a standstill because______.

A．poor countries liberalize farm trade
B．rich countries liberalize farm trade
C．developing countries want wealthy nations to open markets to industrial products and services
D．wealthy nations want developing countries to open markets to industrial products and services