At one time, the majestic American chestnut was so prevalent that it was said a squirrel could jump from tree to tree without once touching the ground between New York State and Georgia.
(A) so prevalent that it was said a squirrel could
(B) so prevalent that a squirrel was said that it could
(C) so prevalent for a squirrel to be said to be able to
(D) prevalent enough that it was said a squirrel could
(E) prevalent enough for a squirrel to be said to be able to
我想問一下為什麼(b)不對
(a)中的it是不是虛主詞,代替said後面的這件事,如果這樣said後面的that可以省嗎,當初我就是看到said後面沒有that才不選(a)的
麻煩大家解答一下吧