If you were planning to buy a television set, the following advertisement would certainly draw your attention: “Color TV. Only ＄79. Two days sale. Hurry.” However, when you go to the store ready to buy. You may discover that they are sold out. But the shop assistant is quick to tell you that he has another model. A much better set which is “just right for you” It costs ＄395. This sales method is called “bait and switch”. Buyers are baited with a sales advertisement, and then they are switched to another more expensive one. Buying things on sale needs careful consideration of the goods and the reason for the sale.The paragraph could be entitled _________.