Which sentence has correct grammar?

Question

Her relationship with her mother, WHO she calls Aunt Ida, is often at a stalemate, with the two stubborn women pulling in opposite directions until one leaves the other.

or

Her relationship with her mother, WHOM she calls Aunt Ida, is often at a stalemate, with the two stubborn women pulling in opposite directions until one leaves the other.

Answer 1

second one, whom

Answer 2

The second; the subject of the sentence is the relationship, not the mother (object).  You use whom to refer to the object and who for the subject.

Answer 3

First one because you know the who is Ida.

Answer 4

I believe the first sentence is correct, even though the second one may sound better.  This is a complex sentence, and even though it appears that WHOM would be correct, you are dealing with a noun in apposition, rather than an object of the verb, to call.  Therefore, WHO would be the correct choice.  Let's see how many others get this right.  

Answer 5

The second one, whom.

Answer 6

Check out relative pronoun:

http://en.wikipedia.org/wiki/Relative_pr...

Answer 7

second one