各位好，請教一下
a. But they'll understand your email as you wrote it.
b. But they'll understand your email as you wrote.
c. I invested the money in the way that you suggested.
為何c是對的，但b是錯的，而a是對的？
我的想法：
c. I invested the money in the way that you suggested.
→c'. You suggested how I invested the money.
d. They'll understand your email in the way that you wrote.
→d'. You wrote how they would understand your email.
e. They'll understand your email in the way that you wrote it.
→e'. You wrote your email in the way they'll understand.
→e''. They'll understand how you wrote your email.
網友jutfrank
(d) doesn't work. You need "it" at the end.
網友GoesStation
(d') is ungrammatical.
我實在不懂(d)和(d')（也就是前文的b.）錯在哪裡？這兩句想表達的是，他們會懂你的
電子郵件，而你把他們會怎麼懂的那個狀況寫出來。
在英語論壇詢問https://goo.gl/mojjRP，但沒有得到確切解答，因此就教於各位
謝謝！