Answer:
Canals and railroads were important to American development because both railroads and canals crisscrossed the states, providing transportation infrastructure that fueled the growth of American commerce.
They were known as muckcrackers during the progressive era
The answer is D the humiliation is what lead to the rise of the nazi party and Japan let that power get to them and they did the one thing that the League of Nations to them not to do which was start invading things
