Which situation best exemplifies the meaning of organizational citizenship?

John called in sick to work, but he didn$$t exceed the allotted days allowed for absences$.$

Dorothy does her job well, but when Christy asked her to answer calls from her clients while she is on vacation next week, Dorothy said that she had enough to do taking care of her own clients.

Everyone works on the fourth Saturday of the month to take inventory. Chris always picks up doughnuts and coffee for the team.

Dawn chose to resign voluntarily when the organization announced that it would cut costs by reducing staff.