Which of following words is closest in meaning to"dificit" in the last PARAGRAPH?

A
解析:根据文章最后一段"What I see happening at Georgetown is that many students just pick the classes they find most interesting， without any real consideration of how it is going to suppo此their overall academic formation. The result is a deficit in fundamentals."可知，很多学生仅仅选他们觉得有趣的课，没有为进一步打基础做好学术考虑，导致基础知识的不足。故选A。