Respuesta :
Sentence three i.e. "Some researchers have found that uniforms do not improve attendance or academic achievement" provides a situation of a counterclaim.
What do you mean by Counterclaim?
A counterclaim may be defined as a declaration for substitute pointed against an adversary party after the authentic claim is filed.
Except the statement three, all other statement signifies the importance and usefulness of school uniform. But this particular statement reveals the truth but slightly in a negative aspect.
Therefore, the correct option for this question is statement three.
To learn more about Counterclaim, refer to the link:
https://brainly.com/question/13628349
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