10.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

the answer is (E), but I think B is right, since it follows the parall rule??

any idea?

thanks!