Patty, a manager of a small team at a publishing house in nyc, wanted to surprise her hardworking team members with a random act of kindness. near the end of the workday on friday, patty went around to each team member's desk and said that they needed to meet in the conference room for an urgent meeting. when the team members arrived, they found wine, cheese, and crackers, and each person's face brightened with happiness. patty felt wonderful seeing the happiness on her staff's faces. patty's motivation can be explained by the?