听力原文：M: Mind if I switch channels？ Those TV commercials are killing me.
W: How can you say that？ Watch: "Take Toshiba, take the world." Fantastic! There's a product you can depend on. A powerful product.
M: If I were you, I wouldn't trust those commercials.
W: Now, look at this McDonald's commercial! Aren't those little kids cute？ Oh, and there's such a warm family feeling.
M: Just how an advertising agency wants you to see McDonald's. You're the target audience. When they make TV commercials, they use scientific methods to learn what you'll like and buy.
W: Are you telling me those darling little children biting into Big Macs are part of a scientific project to get me into McDonald's？
M: Advertisers don't bother with facts any more. Instead they want the end-user, that's you, to fall in love with their product.
W: I see. So what you're saying is," Watch out, or commercials will take over your life."
M: Yes, just wake up. Many competitors are spending piles of money to increase their market shares, bur only can celing out each other's efforts and neither would win. What's more, the extra costs of advertising will certainly be passed on to the customers.
W: But anyway the advertising will produce a good image of a product and that leads to consumer brand loyalty. That's to say, consumers are loyal to a certain product and keep buying it and they're willing to pay more.
M: That's the problem. More advertising means higher costs to the consumer. so in the end the winner is always the company, not the customer.
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Advantages of TV shopping.
B. Their favorite TV channels.
C. Beware of advertising on TV.
D. Popularity of advertised products.