[单项选择]One of the most authoritative voices speaking to us today is, of course, the voice of the advertisers. Its shrilling clamor dominates our lives. It shouts at us from the television screens and the radio loudspeakers; waves to us from every page of the newspaper; plucks at our sleeves on the escalator; signals to us from the road-side billboards all day and flashes messages to us in colored lights at night. It has forced on us a whole new conception of the successful man as a man no less than 20% of whose mail consists of announcements of giant carpet sales. Advertising has been among England’s biggest growing industries since the war, in terms of the ratio of money earnings to demonstrate achievement. Why all this fantastic expenditure Perhaps the answer is that advertising saves the manufacturers from having to think about the customer. At the stage of designing and developing a product, there is quite enough to think about without worrying over whether anybody will wan A. influences our image of the kind of person we ought to be like. B. interferes with the privacy of home life. C. continually forces us into buying things. D. distracts us no matter where we travel.