D). Research suggests that students who attend schools that require uniforms are more focused on their studies.
Explanation:
The evidence which most aptly supports the affirmative position of implmenting the school uniforms would be 'the research suggesting the students attending school in uniforms are more focused towards studies.' It <u>substantiates the claim that uniforms prevents the students' from distractions caused by daily chore of chosing the outfit to wear to the school</u> and allows them to preserve their focus completely for their studies and other activities instead of spending time on selection of outfits for school. Thus, <u>option D</u> is the correct answer.
