Kendra is trying to decide whether to go to Abby's house to watch a movie or to go to Samuel's house to play board games. They live about the same distance away, and there is no cost for either event. If she chooses to go to Abby's house, what is the opportunity cost?

The opportunity cost of choosing to go to Abby's house to watch a movie is the enjoyment and experience of playing board games at Samuel's house. This means that Kendra will miss out on the fun of playing board games with Samuel and whoever else may be there.