Which sentence best summarizes the point of view of people who support wearing uniforms in public schools?

a. school uniforms make students unable to express themselves and emphasize the differences between rich and poor students.

b. school uniforms make students behave better because they are less focused on what others are wearing and more focused on their learning.

c. school uniforms allow students to express themselves without focusing on who has nicer clothing and more money.

d. school uniforms let students focus on learning and feel safe in school by taking away the competition over who has nicer clothing.