was the US main goal in Vietnam A. upholding the Geneva Accords
B. containing the spread of communism
C. reunifying Vietnam
D. Negotiating a cease fire agreement with North Vietnam

would not cooperate with each other voluntarily.

where is the picture

some american cities felt workers were being oppressed by business monopolies

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: