What grammatical name is given to this expression...What made her choose me

Answer 1

since there is no question mark, indicating a sentence, I guess it must just be a subordinate (noun) clause.

I don't know (what made her choose me).

Now, for extra credit: what part of the sentence is "choose me"?

Answer 2

that i could take care of myself to this expression

Answer 3

That I could take care of myself