单选题 The major problem discussed in the passage is ______.

A、 the importance of lifelong retraining of the unemployed workers
B、 the social consequences of the widespread use of computers in the United States
C、 the barrier to the employment of young people
D、 the general rule of the advancement of technology

【正确答案】 B

【答案解析】[试题分析] 段尾结论题。
[详细解答] 参阅第三段第一句“Such social problem are not the fault of the computer，of course，but a consequence of the way the American society might use the computer．”，我们可以判断B项是最佳答案。