5.The expected rise in the price of oil could be a serious impact to industrialized nations and severely diminish the possibility to have an economy free of inflation.
(A) be a serious impact to industrialized nations and severely diminish the possibility to have
(B) seriously impact on industrialized nations and severely impede the possibility to have
(C) seriously impact on industrialized nations and severely impede the possibility of having
(D) have a serious impact on industrialized nations and severely impede the possibility to have
(E) have a serious impact on industrialized nations and severely diminish the possibility of having
答案E。请问B错在哪里呢？ a serious impact改为seriously impact 从该文上看，有没有改变原文的意思呢？ 再问一下the possibility 后面是接什么呢？
B的错误:
1) impact on sth. impact这样用是名词. Seriously是副词. Seriously impact on sth.=> 副词修饰名词, 错. The rise could seriously impact industrialized nations就对了.
2) possibility of doing sth.
3) impede 不等于 diminish | 
