Question

choose the best idea to add to a summary of \more than a uniform.\
athletes and their uniforms represent different countries at the olympic games.
olympic teams consider colors, symbols, and a countrys history when designing uniforms.
uniform colors might be related to, or even match, a countrys flag.
the canadian hockey jerseys have had the maple leaf, which is a national symbol.
some countries choose to put a meaningful national symbol on the teams uniforms.

Explanation:

Para un resumen, se busca una idea general que abarque el tema. La opción "Some countries choose to put a meaningful national symbol on the team's uniforms" es una idea general que engloba ejemplos como el jersey de hockey canadiense (con el símbolo nacional de la hoja de arce) y la relación de los colores de los uniformes con la bandera de un país (que es un símbolo nacional). Las otras opciones son más específicas (como el ejemplo del jersey canadiense) o solo abarcan un aspecto (como los colores y la bandera).

Answer:

Some countries choose to put a meaningful national symbol on the team's uniforms.