寻找it的指代

idsamsang

下面一道题目it指代的什么？有点拿不准。

[size=11.000000pt]Japan's abundant rainfall and the typically mild temperatures throughout most of the country haveproduced a lush vegetation cover and, despite the mountainous terrain and generally poor soils, it hasmade possible the raising of a variety of crops.
                                       

•    it has made possible the raising of
•    has made it possible for them to raise
•    have made it possible to raise
•    have made it possible for raising
•    thus making it possible for them to raise
  

                                
                        
               

cathy-wang

C - it指代后面的不定式 to raise a variety of crops.
答案应该是C么？

咖啡印象

同意楼上~

idsamsang

是的，没反应过来。