What can the way of consuming show A．How people of one country view human relations. B．How different cultures are formed. C．Whether the customer is always right or not. D．How people of one country view people of another country.
What does the remark of the writer's friend imply A．Waiters are usually skillful at talking with others. B．We should spend more time talking with our families. C．The good service of one culture may not suit people of another culture. D．People regard waiter's talk as one part of service.