The woman stood at the window.she stood___ it

The woman stood at the window.she stood___ it
A.in front B.in front of C.front D.ahead of
但为什么不能选D呢?ahead of也是在…之前的意思呀!

in front of (在...前面) 常用於描述具体或抽象的东西之间的位置关系,空间感比较强
The vase is in front of the table.
He is standing in front of the entrance.
The problem in front of us is water shortage. 摆在我们面前的困难是缺水.
ahead 翻译和 in front of 很相似,不过意思上有超越了、超前的感觉,比较
He is ahead of us. 表示他走在我们前面,或他超越了我们
Japan is one hour ahead of us. 日本比我们这儿快一个小时