7675. The two brothers should not vie with each other but work in co-operation.

✅ The correct answer is option C.
Fight : take part in a violent struggle involving the exchange of physical blows or the use of weapons.

Conspire : make secret plans jointly to commit an unlawful or harmful act.

Compete : strive to gain or win something by defeating or establishing superiority over others.

Envy : a feeling of discontented or resentful longing aroused by someone else’s possessions, qualities, or luck.
Vie : compete eagerly with someone in order to do or achieve something.

Synonym of Vie is Compete