Foreign policy is the A programs created to help immigrants in the United States
B set of actions a country takes in relation to other countries
C decisions of Congress that guide the future of the country
D laws written by the president that affects the United States

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a is the final : )

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: