Using coordination:Access to the cabin is given by a personal ca

Using coordination:
Access to the cabin is given by a personal card, which also serves as a credit card for everything you buy on board, including drinks. There is no need to carry cash.
【正确答案】：Access to the cabin is given by a personal card, which also serves as a credit card for everything you buy on board, including drinks, so there is no need to carry cash.