La competencia fue el equipo de brasil. campeón copa entrenador campamento

El CAMPEÓN de la competencia fue el equipo de Brasil.

Explanation:

The right answer is: EL CAMPEÓN de la competencia fue el equipo de Brasil.

This kind of exercises are thought to help Spanish learners to improve their vocabulary inventory, so we need to:

1. Understand the context of the sentence: this implies to know the meaning of each word and to understand what the complete enounce is saying

2. Understand the meaning of the options and be able to identify its differences.

In our case, we have 4 options: champion, cup, coach and camp. All of them are substantives, so in a first approach all of them can apply to be right, but when we attend to the meaning we realize that Brazil team cannot be a “copa” (the trophy that the winner have) and neither can be a “campamento” (a camp, a group of temporary houses located in a specific land) because it has no relation with fútbol; finally “entrenador” cannot be the correct one because it means the person who trains the players or even the teams, so a complete team cannot do this task.