有争议的英语选择题i saw a woman running toward me in the dark..

有争议的英语选择题i saw a woman running toward me in the dark..
I saw a woman running toward me in the dark.Before I could recognize who she was,she had run back in the direction _________she had come.which
有人说是from which
但是答案是in
我不明白为什么用in
那定语从句就是she had come in which =she had come in direction
这说的通吗?
direction可以这么用吗?他的词组是这个吗?
in the direction of which不也行吗？这样可以看作是which代替the direction 然后she had come 作为which的修饰成分。