Answer:
it might be D. hope it HELP
Because the 13 colonies were controlled by Britain at the time
"A" is quite correct, though "C" adds a bit more detail of how soldiers felt about Trench Warfare. In my honest opinion, I think "D" is the correct answer.
Trench Warfare was rather horrific, and brutal to say the least -- it was also "boring" during stalemates if neither party was engaging in any sort of push.
Note: I'm not a teacher of any sorts! This is just my opinion from things I've learned in the previous years.
First, we'll explain what the Great Railroad Strike of 1877 was. It was simply put, it was when railroad workers around the nation burned many railroad stations and other various railroad property. This state of unrest caused labor unions to be formed. The strike ended around 45 days after it started.
Larry Page and Sergey Brin