单项选择题

Questions 9 to 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.

Officials in the former Soviet Republic of Azerbaijan now fear ______ in a huge subway fire.

A.a high voltage spark
B.all electrical fault
C.more, than 300 people were killed Saturday
D.more than 300 people were killed Thursday