no one was aware of where she had gone?

[Maggie]

Hi,guys

The people at the party were worried about Janet because no one was aware ____ she had gone.

(A) where that (B)of where (C)of the place where (D)the place

The correct answer is (B),but I think (C) is okay,also. Am I right?

Thanks in advance.

Maggie
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[Maggie]

I am thinking that 'where' might be complex relative pronoun. It's similar as what equals the thing which,where equals the place where etc. Am I right?
_________________
In my view,the more mistakes someone else corrects me,the more I could learn.
And welcome to my blog: http://0rz.tw/793HL