Oh wow--that is a PERFECT example of something that would really stress DD out. And yes, she would ask why why why but why but why?, and some teachers would see it as oppositional/obnoxious.

You make me think about having an IEP for her (we do not have one; school behavior isn't much of an issue, but she does present as high-strung, and occasionally gets in trouble for "disrespect" that is really more like the above).