Students are selected for scholarships an open, national petition.
A. by means of
B. in view of
C. in favor of
D. in want of
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(答案→)A. by means of
B. in view of
C. in favor of
D. in want of
解析：句意：学生可以通过公开全国性竞赛来选择获得奖学金，by means of意思为 “通过……的方式；凭借”，符合题意。in view of 鉴于；考虑到；in favor of 赞成； in want of缺乏；需要。