A rational decisionmaker takes an action if and only if
A、themarginalbenefitoftheactionexceedsthemarginalcostoftheaction.;
B、themarginalcostoftheactionexceedsthemarginalbenefitoftheaction.;
C、themarginalcostoftheactioniszero.;
D、theopportunitycostoftheactioniszero.
发布时间：2025-09-30 19:06:05
