请教GWD-11-32

Q18:
GWD-11-32

Since 1975 so many
people have been moving to Utah
such that Mormons who were once 75 percent of the population are now only
accounting for half of it.

A.   
so
many people have been moving to Utah
such that Mormons who were once 75 percent of the population are now only
accounting for half of it

B.   
many
people have been moving to Utah,
so Mormons once 75 percent of the population are now accounting for only half

C.   
that
many people have been moving to Utah,
such that the Mormons that were once 75 percent of the population are now
accounting for only half of it

D.   
many
people have been moving to Utah
such that the Mormons, who once represented 75 percent of the population, now
only account for half

E.    
so
many people have been moving to Utah
that the Mormons, who once represented 75 percent of the population, now
account for only half

D里面用such that体现的逻辑关系不如E准确。

such that和so that比较，such that倾向于引出充分条件(后者可推出前者)，而so that倾向于引出必要条件(前者可推出后者)。

E里面进一步把so that拆开变成so many xxx that...突出定语many对整个条件的限制，使得表达更加准确。