题目内容：
After reading the article, one would refrain from concluding that_________
A．optimism reigns in regard to getting PhD dropouts to return to their pursuit of the degree B．a PhD dropout, by and large, does not have what it takes t learn the degree
C．colleges and universities employ a substantial number of PhD dropouts
D．the PhD' s are not earning what they deserve in nonacademic .positions
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