Without facts,we can't form a correct opinion, for we need to have actual knowledge___________

our thinking.     [ ]

A. which to be based        

B. which to base on    

C. on which to base          

D. where to base on

60年代台湾建筑业崛起，张敏钰投资兴建当时台北第一高楼——16层嘉新大楼。