问一个prep中的问题~~

59.   (27573-!-item-!-188;#058&003208)

A new genetically engineered papaya was produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but university and United States Department of Agriculture researchers who allowed growers to use it free of charge.

(A) produced not by seed companies who have been motivated by profit, which was the case with most genetically modified crops previously approved for commercial use, but

(B) produced not by profit-motivated seed companies, the case with most genetically modified crops previously approved for commercial use, but

(C) produced not by profit-motivated seed companies, as was the case with most genetically modified crops previously approved for commercial use, but by

(D) not produced by profit-motivated seed companies, which was the case with most genetically modified crops previously approved for commercial use, but was produced by

(E) not produced by seed companies who have been motivated by profit, the case with most genetically modified crops previously approved for commercial use, but by

答案选C没问题~~~

我想知道如果把C大案中的as was the case with most genetically modified crops...中的as was去掉是否可以作为正确答案呢？