Which research question would be most appropriate for a four- to five-page research paper? How successful have school uniforms been for schools in the United States? Does the use of school uniforms decrease violence in schools? What style of school uniforms is most effective? What percentage of schools have dropped mandatory school uniforms?
The best one would be the first choice because it allows for easy research material, and the other choices do not show good reading hooks or good essay material. Hope this helped!