Kelly arrives for work at a restaurant at 5:00 p.m. Once there, she washes and chops vegetables, then sets aside ingredients and organizes them for the cook. Kelly is most likely a . Mark's work hours change every week, depending on when he is needed. He wears a suit and tie to work at an elegant restaurant. He greets guests and seats them in a waiting area. He then guides them to their tables. Mark is most likely a