一道SC，修饰语的用法还是没搞懂，29号就考试了，麻烦大家帮我看看

徐小鱼

?Q19.
?So-called green taxes, which exact a price for the use of polluting or nonrenewable fuels, are having a positive effect on the environment and natural resource base of countries as varied as China, the Netherlands, and Hungary.
?(A) as varied as
?(B) as varied as are
?(C) as varied as those of
?(D) that are as varied as
?(E) that are varied as are
我选了D