纠结的一道语法题，真晕，求助

缺氧

Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared.
A) and with its superiority to the horse being
B) and its superiority over the horse had been
C) and its superiority to the horse
D) its superiority over the horse
E) with its superiority to the horse having been
书上答案选B，可我觉得选C。不是说前面有and可以省略was吗？真困惑，求助。thanks in advance

evelyn205205

什么书的题目，GWD么？lz，我觉得这道题的答案有问题耶，应该是C
为什么呢~因为：
superiority over 是一个错误表达，应该是superiority to ；
再者，prove不能用被动，用主动形式的。
所以我认为此题的答案是C。
lz，在考虑一下咯

毛毛carina

这题是选C 哦，SC大全的552题
理由同LS

缺氧

哦，知道了，谢谢你们哦  :）

wangyue1982

还是觉得b对
superior to, superior over都对，over很多情况都可以做比较，比如love a better than b, 很所时候说love a over b.

夏天amy

我也觉得B对~ 题目是说它的优越性已经被证明了 之前用的是was 所以后面用had been  这样比B更有逻辑性。