请教一个关于并列句省略的问题

jingyi011

1.Despite protests from some waste-disposal companies, state health officials have ordered the levels of bacteria in seawater at popular beaches to be measured and that the results be published.
(A) the levels of bacteria in seawater at popular beaches to be measured and that the results be
(B) that seawater at popular beaches should be measured for their levels of bacteria, with the results being
(C) the measure of levels of bacteria in seawater at popular beaches and the results to be
(D) seawater measured at popular beaches for levels of bacteria, with their results
(E) that the levels of bacteria in seawater at popular beaches be measured and the results

选e

2.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

选c

请问第二题为什么不选c，省略was呢？如果改成superiority over能选c嘛？

Pope_Xie

我也觉得没有明显的逻辑关系说明要用过去完成时，但是C的was是不能省的，即使平行结构也是不省助动词的，省略的话后半句就变成没有被动的意思了;