A Mixed Strategy Is a Strategy

Multiple Choice

A mixed strategy is a strategy

A) that results in the highest payoff to a player regardless of the opponent's action.
B) that guarantees the highest payoff given the worst possible scenario.
C) that describes a set of strategies in which no player can improve her payoff by unilaterally changing her own strategy, given the other players' strategies.
D) whereby a player randomizes over two or more available actions in order to keep rivals from being able to predict her action.