Questions 25 to 27 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now listen to the news. A UN Security Council delegation travels to South Africa on the first slop of a nine-nation African tour aimed at ______.
A．strengthening the ties between UN body and South Africa B．providing economic aid to South Africa C．monitoring comprehensive ceasefire agreement D．bolstering peace efforts in the central Great Lakes regions