Jack is the house manager for Beta Theta Pi$,$ a social fraternity. He is negotiating with Jackson Hauling for trash pickup services at the fraternity house. He prefers a three$-$days$-$per$-$week trash pickup schedule, but he is also willing to accept a two$-$days$-$per$-$week arrangement. While negotiating with the company, he asks for daily trash pickup service. The three$-$day trash pickup schedule is Jack's