Which sentence explain why taxes were ongoing sources of conflict for the american colonists?

a. they did not get sufficient gov'y services.
b. they paid a higher tax rate than those living in england.
c. they were taxed without having representation in parliament.
d. they felt the taxes should be invested in colonial infrastructure.

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: