From the perspective of an economist if Eric decides to go to the concert with Ginny what has he just done?

Eric has plans to go to a play and already has a $50 nonrefundable nonexchangeable and nontransfer Show more Eric has plans to go to a play and already has a $50 nonrefundable nonexchangeable and nontransferable ticket. Now Ginny whom Eric has wanted to date for a long time asks him to a concert. Eric would prefer to go to the concert with Ginny and forgo the play but he doesnt want to waste the $50 he spent on the play ticket. From the perspective of an economist if Eric decides to go to the concert with Ginny what has he just done? a.Made a choice that was not optimal b.Correctly ignored a sunk cost c.Incorrectly allowed a sunk cost to influence his decision Show less