og11-68题请教

彼岸无岸

68．Advocates of a large-scale space·defense research project conclude that it will represent a net benefit to civilian business．They say that since government-sponsored research will have civilian applications，civilian businesses will reap the rewards of government-developed technology．
Each of the following l if true I raises a consideration arguing against the conclusion above, EXCEPT：
(A)The development of cost-efficient manufacturing techniques is of the highest priority for civilian business and would be neglected if resources go to military projects，which do not emphasize cost efficiency．
(B) Scientific and engineering talent needed by civilian business will be absorbed by the large-scale project．
(C) Many civilian businesses will receive subcontracts to provide materials and products needed by the research project．
(D) If government research money is devoted to the space project，it will not be available for specifically targeted needs of civilian business，where it could be more efficiently used．
(E)The increase in taxes or government debt needed to finance the project will severely reduce the vitality of the civilian economy．

看不懂A是什么意思
og说the neglect of cost efficiency, considered to be the highest priority by civilian businesses, is an important point in an argument against the project.
为什么？
谁能给我解释一下，谢谢