[求助]FF135一题不清楚

The stated goal of the government’s funding program for the arts is to encourage the creation of works of artistic excellence. Senator Beton claims, however, that a government-funded artwork can never reflect the independent artistic conscience of the artist because artists, like anyone else who accepts financial support, will inevitably try to please those who control the distribution of that support. Senator Beton concludes that government funding of the arts not only is a burden on taxpayers but also cannot lead to the creation of works of true artistic excellence.

Which one of the following is an assumption on which Senator Beton’s argument is based?

A.       Most taxpayers have little or no interest in the creation of works of true artistic excellence.

B.       Government funding of the arts is more generous than other financial support most artists receive.

C.       Distribution of government funds for the arts is based on a broad agreement as to what constitutes artistic excellence.

D.       Once an artist has produced works of true artistic excellence, he or she will never accept government funding.

E.        A contemporary work of art that does not reflect the independent artistic conscience of the artist cannot be a work of true artistic excellence.

答案E，的确有理。但是D是原结论的逆否命题，为什么不对呢？concludes that government funding  cannot lead to the creation of works of true artistic excellence. 逆否是Once an artist has produced works of true artistic excellence, he or she will never accept government funding.

个人意见：推理过程是：艺术家讨好sponsor，失去自己的独立思维->做不出艺术来。E是fill gap.只有有自己的独立思维，才是艺术。D没有遵循这个LOR。 government funding  cannot lead to the creation of works of true artistic excellence我觉得本身是一陈述句，不是一个if then得推理过程。非要说谁是D的逆否，也只能说：if artist accepts funding, he can not produce excellence注意这是两个句子，两个SVO。请大家多多指教

谢谢