题目内容：
回答题。Advertising
Advertising is a form of selling. For thousands of years there have been individuals who have tried to 51 others to buy the food they have produced or the goods they have made or the services they can 52
But in the 19th century the mass production of goods 53 the Industrial Revolution made person-to-person selling inefficient. The mass distribution of goods that 54 the development of the railway and highway made person-to-person selling too slow and expensive. At the same time mass communication first newspapers and magazines then radio and television made mass selling through 55 possible.
The objective of any advertisement is to convince people that it is in their best 56 to take the action the advertiser is recommending. The action 57 be to purchase a product, use a service, vote for a political candidate or even to join the Army.
Advertising as a 58 developed first and most rapidly in the United States country that uses it to the greatest 59 In 1980 advertising expenditures in the U.S exceeded 55 billion dollars or 60 2 percent of the gross national product. Canada spent about 1.2 percent of its gross national product 61 advertising.
62 advertising brings economies of mass selling to the manufacturer it produces benefits for the consumer 63 . Some of those economies are passed along to the purchaser so that the cost of a product sold primarily through advertising is usually far 64 than one sold through personal salespeople. Advertising brings people immediate news about products that have just come on the market. Finally advertising 65 for the programs on commercial television and radio and for about two thirds of the cost of publishing magazine and newspapers.
A．request
B．oblige
C．affect
D．persuade
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