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Mass communication
1. Mass communication may be defined simply as messages directed at masses, or great numbers, of people. There are features of mass communication, however, that help to set it apart from other communication. Mass communication messages are prepared by institutions or other groups of people. A local television evening news program, for example, involves the three or four people who are seen at the news desk, but it also involves many people who are never seen on camera—camera operators, engineers, business managers, and many others.
2. Mass communication is also directed to a relatively large and anonymous audience—“to whom it may concern.” The message must appeal to a large number of people, or those producing it will not remain in business. Finally, the source of the message is remote—separated from the audience by time or space. As a consequence, those being addressed do not feel the same need to pay careful attention as do those in the company of the message source. For example, television viewers generally feel free to talk to each other, leave the room to get a snack, change channels, or fall asleep.
3. The fact that mass communication is a business has important implications. The mass media are in competition with each other for sales dollars, advertising revenue, or both. With advances in technology the number of alternatives is increasing. People have a greater variety of communication products from which to choose. Cable television, videotapes, and pay television systems, for instance, offer an increasing number of options to television viewers.
4. As some people turn away from regular network and local-station programming, advertisers may be unwilling to pay the prices asked for advertising time. In the past, magazine publishers, film producers, and radio stations found it necessary to reach out for specific audiences. It has been suggested that the general mass audience is disappearing in favor of a number of smaller, more limited mass audiences.
(Encyclopedia Britannica)
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Technological advances give people possibility to chose between mass media and other communication products.