【单选题】

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.
Railway workers joined in the strike because theyA．attempted to halt the whole network for train travel.
B．were dissatisfied with proposed rise in unemployment.
C．were unhappy with their working conditions.
D．wanted to Support workers from other unions.