Read the paragraph below and select the best prediction based on the text.

Officials for the World Cup have to be the best in the world. They are refereeing games with expert players. Once nominated and selected, the officials perfect their fitness and endurance by sprinting, running backwards, and changing direction. They must be in the right position to see the active play on the field. This takes years of practice.


Referees must work for years before refereeing the World Cup.
Referees are tired after a game.
Each official has to be able to run backwards.
They are refereeing games with expert players.