【单选题】Mary is a waitress (女服务生). She works at a busy restaurant She lakes people's orders(订单) and serves (供应)them food. She also takes people's money and gives them change(零钱). When the restaurant is really...
A.
She takes people's order and seines them food.
B.
She sets and cleans the table.
C.
She stands at the gate of the restaurant.