recycling paper is _____ saving waterA.the same as B.so impo

recycling paper is _____ saving waterA.the same as B.so important as C.as important as
选哪个,麻烦解释具体原因
--i think saving water is more important than recycling paper in our life
--i disagree.recycling paper is _____ saving water
A.the same as B.so important as C.as important as D.the most important