手敲几道题~~请高人指点！

1.Growing competitive pressures may be encouraging auditors to bend the rules of clients ;auditors may,for instance,allow a questionable loan to remain on the books in order to maintain a bank's profits on paper.

A.clients ;auditors may,for instance,allow

B.clients,as an instance ,to allow

C.clients,like to allow

D.clients ,such as to be allowing

E.clients ;which might ,as an instance ,be the allowing of

答案选A~~我认为B也正确~~XDF的老师解释说B不对是因为ALLOW的动作应该是AUDITOR发出的但是B中没有出现~~此时句子的主语是PRESSURE因此ALLOW的动作是PRESSURE发出的~~但是我认为既然B中已补出了TO，说明是与前面的TO BEND对称的~~即该动作仍然是AUDITOR发出的~~

2.The colorization of black-and-white films by computers is defended by those who own the film rights ,for the process can mean increased revenues for them;many others in the film industry,however ,contend that the technique degrades major works of art,which they liken to putting lipstick on a GREEK statue.

答案把阴影部分改成了likening it to putting lipstick on a Greek statue

请问NN这里的IT是指代什么呢？

翻译一下就会发现to bend与to allow并不是平行的关系，to allow解释了怎样to bend

it指代的是The colorization of black-and-white films by computers

那这样的话原文的WHICH也可以指代The colorization of black-and-white films by computers吧~~~原文为什么不对呢

which作为定语从句放在这里会产生歧义，以为指代的是major works of art