(1) Some schools argue that uniforms help students create a sense of belonging and pride. (2) It enables them to realize that they are part of a larger organization. (3) Some people also believe that uniforms help students to be proud of their appearance. (4) They also think that uniforms reduce distraction as well as bring about equality in the classroom, thus helping to improve concentration as well as keeping class united. Which revision improves the clarity of sentence 4?

A. They also think that uniforms bring about equality and keep the students united.

B. They also think that uniforms help the students reduce distraction and improve concentration.

C. They also think that uniforms reduce distraction and improve concentration.

D. They also think that uniforms reduce distraction, bring about equality, and help improve concentration in the classroom.