The mot obvious purpose of advertising is to inform the consumer of available products or services.The second (31)_is to sell the product.The second purpose might be more important to the manufacturers than the (32) _.The manufacturers go beyond only telling consumers about their products.They also try to persuade customers to buy the(33) _by creating a desire(34) _for_it.Because of advertisement，consumers think that they want something that they do not need.After buying somethin9，the purc
