C
because civilization has to do with a very organized Society
There was a group of young european workers that came to America from early 17th to early 20th century. These inmigrants would get a contract to work for an american employer during a time period, usually between 1 to 7 years. They didn't get any wages for their work, the employer paid for their subsistance and their passage to the country, but that also meant that he could restrict some of their activities, they weren't completely free. After their contract expired, they were allowed to stay in the country and sometimes they would get a small parcel of land. They were called the Indentured servitude.
Mass communication is different from face to face communication because mass communication is involving radio, television, social networking, billboards, and newspapers wherein a rapid of transmitting messages towards a large number of people is done through this way. While face to face communication is a perception without intervening any technology, it is an interaction of individuals directly with their physical presence.
