单项选择题
Questions 9 and 10 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.
The example in the news item is cited mainly to show（）
A．that doctors are sometimes professionally incompetent.
B．that in cases like that hospitals have to pay huge compensations.
C．that language barriers might lower the quality of treatment.
D．that language barriers can result in fatal consequences.