In a strategic game represented by a payoff matrix, how can players determine their best response if they know the strategies chosen by their opponents?

In a strategic game, players can determine their best response by looking at the choices their opponents have made and then finding the option that gives them the highest payoff. This is done by examining the payoff matrix, which shows the outcomes for every combination of strategies. For example, if Player A knows that Player B has chosen strategy X, Player A can look at the row corresponding to strategy X in the matrix to see which of their own strategies yields the best result. The best response is the strategy that maximizes Player A's payoff given Player B's choice. When all players choose their best responses to each other’s strategies, this situation is known as Nash Equilibrium, where no player has an incentive to change their strategy.