单选题 The passage mentions all of the following as causes of the decline of political organizations in the United States except ______.

A、 increased numbers of immigrants
B、 development of the welfare state
C、 improved conditions for state workers
D、 the influence of television

【正确答案】 A

【答案解析】细节题。见文章的最后一段第三句话As recent immigrants became more educated they were less dependent on party workers．由于移民受教育程度的提高，所以他们不再依赖党内的工作人员了，由此可知，A项为正确选项。