Sydonie: Parents differ in their beliefs about the rules to which their children should be subject.
Conclusion
Your conclusion (any disciplinary structure in schools is bound to create resentment) is incorrect.
Evidence
Educational research shows that when parents list the things that they most want their children’s schools to provide, good discipline is always high on the list.
Evaluate
Sometimes there's just so much wrong with an argument that it's hard to know where to start. Stephanie's evidence provides very little support for her rebuttal of Sydonie because it fails to address the concepts in Sydonie's evidence or her conclusion. There's no mention of resentment, and no mention of what Sydonie believes will guarantee resentment: parental beliefs about which rules their children should be subject to.
Goal
Look for an answer that says something along the lines of "Stephanie doesn't rebut Sydonie's actual argument."