单选题 The true cause of the anxiety of the workers is that______.

【正确答案】 D
【答案解析】第二段开始的一句话"The worker and employee are anxious,not only because they might find themselves out of a job;they are anxious also because they are unable to acquire any real satisfaction or interest in life"使我们明白他们失去了自己的个性和独立。