单项选择题

Questions 23 and 24 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions.
Now, listen to the news.

Why did NOT the rescue go smoothly

A.Because of the military interference.
B.Because of the low temperature.
C.Because of the avalanches and bad weather.
D.Because of the unconsciousness of Tomaz Humar.