53.  Most newspapers depend on advertising for their very existence. Newspapers are sold at a price that ______ even a small fraction of the cost of production. The main source of income for most newspapers is commercial advertising.
【正确答案】 C
【答案解析】 上下文语义理解。根据空格后even提供的信息，此处意为“报纸的售价之低，不足以抵付成本的一小部分”。符合上下文关于广告收入的说法。