There were many reasons. For starters, it involved getting rid of a large number of Native Americans, and while some supported this, others opposed it as they were peaceful. Another thing was that this meant the introduction of new states and it deepened the division based on whether the states should be slave states or non-slave states. Also they involved war with Mexico and some wanted this and some didn't.
To my knowledge, the correct answer among all of the given choices is C.) Steam. If I'm not mistaken, this was the time that more trains came into use.
I hope this is the answer you were looking for and that it helps!! :)
Carter's foreign policy was oriented toward the goals of human rights and peace, negotiating an arms reduction treaty with the USSR, and a peace agreement between Israel and Egypt. Carter's ethos of humility and compassion informed much of his presidency and was reflected in his foreign policy and administration
Nailing a list to the door of a church in germany
