Which of the following is an example of the barter system?AMatthew wants to exchange his clothes with his twin brother, but he doesn't wish to exchange.BGia pays ninety rupees to a barber for a hair cut.CAnurag wants ten packet of chips in exchange for the one chocolate bar that he has, but his friend does not wish the same.DMatthew agress to give Anurag his clothes and is happy to receive the chocolate
