Which factor contributed to the growth of youth culture in the united states during the 1950s?

The correct answer is:

The spread of television ownership to most American households

Between the 1940s and 2000s, commercial television had a profound and wide-ranging impact on American society and culture. It influenced the way that people think about such important social issues as race, gender, and class  It played an important role in the political process, particularly in shaping national election campaigns.

b

explanation:

answer: the time zones used to be whatever the local authority wanted them to be. one town might have 6am whenever the sun came up and another town had 6am 10 minutes later.  

the trains had a hard time when their orders said to be at a certain point at 6am.  

6am, but who's 6am.  

the railroads got together and set the time zones more or less along the longitude lines across the country.

explanation: