Answer:
In a simultaneous move game, each player has to make his choice after knowing his rival´s choice.
Explanation:
The Nash equilibrium theory is about a competitive but more equal way of playing a game. It is about how to think a best move taking into consideration the other players moves. This means that for the game to happend ther is a need of more than one player, it is about planning a strategy according to the others players movements. This principle is present in differnt games.