语法大全266的疑问

266.     During the Great Depression, industrial output fell by nearly fifty percent from its peak in 1929 down to its nadir in 1933.

(A) During the Great Depression, industrial output fell by nearly fifty percent from its peak in 1929 down to its nadir in 1933.

(B) During the Great Depression, industrial output fell by nearly fifty percent from its peak in 1929 to its nadir in 1933.

(C) At the time of the Great Depression, industrial output fell by almost fifty percent from its 1929 peak down to its 1933 nadir.

(D) At the time of the Great Depression, industrial output fell from its peak in 1929, by nearly fifty percent, to it nadir in 1933.

(E) During the Great Depression, industrial output fell from its peak in 1929 to its nadir in 1933 by nearly fifty percent

为什么B比E好呢？E中的by nearly fifty percent虽然位置变化了，但是并不会引起歧义啊，反而B中谓语和宾语的位置离的很远，这一般不是错的吗？

谢谢！！！

1.by...是介词短语，修饰fell，所以一定要紧跟着fell；

2.fall这里是vi，所以应该没有直接的宾语吧，from to也是介词短语，作状语；

举两个例句，

But it did fall by over 4% a year between 1990 and 2005.

Composite CPI is forecast to fall by 1.5%.