根据短文内容判断下列句子的正误。

A

    Baseball isone of the most popular sports in the USA. Each team has nine players. The baseball season goes from April to September. The members of the important baseball teams become heroes (英雄). At the end of the season, the two top teams play together. Lots of baseball fans go to watch the games. There are also thousands of baseball fans listening to the radio or watching TV. People always talk about the games. They still talk about the results (结果) and the players, even if (即使) the games are over. American football is more popular than baseball in the USA. When the baseball season ends, the football season begins. When there is an important American football game, millions of people sit in front of the TV set to watchit. Many people even sit beside the radio to hear the result when they are working.

“在欧洲各国，战争爆发之初，一般市民以狂热的态度欢迎它的到来……为国家而战被认为是崇高的理想……社会各个阶层的对立一时间被忘却……所有的市民相互合作，这些事情都被美化了。”作者认为第一次世界大战爆发的原因是（    ）