Patrick has plans to go to a movie and already has a $10 nonrefundable, nonexchangeable, and nontransferable ticket. Now Marissa, whom Patrick has wanted to date for a long time, asks him to a concert. Patrick would prefer to go to the concert with Marissa and forgo the movie, but he doesn't want to waste the $10 he spent on the movie ticket. From the perspective of an economist, if Patrick decides to go to the movie, what has he just done? Incorrectly allowed a sunk cost to influence his decision O Made an optimal choice O Correctly ignored a sunk cost