【正确答案】 D

【答案解析】辨认事实题。题目询问作者最担心的_________。根据文章第2段“But my own worry today is less that of the overwhelming problem of elemental literacy than it is of the slightly more luxurious problem of the decline in the skill even of the middle-class reader， of his unwillingness to afford those spaces of silence，those luxuries of domesticity and time and concentration， that surround the image of the classic act of reading (目前我担心的倒不是基本文化水平这个大问题，而是一个较为奢侈的问题，即美国中产阶级读者阅读艺术的衰退，即使是中级的读者也不愿意在寂静无声的空间里，放下家庭事务，付出时间全神贯注地进行经典性的阅读)”，因此，只有[D]才与文中所陈述的意思相符。