The answer is going to be c.
B. Fulton's Steam Engine
Explanation:
I believe it is B because there were steamboats and steam powered trains as a result.
There were many hostile indians in the area
Answer: It is extremely difficult to impeach the president because the framers of the Constitution did not want political disputes to cause impeachments. So it will always have to be closely looked over. Many people confuse this too, to impeach means to accuse or bring charges, it does not mean to remove. Also in the end the house is the one that decides whether to impeach or not, if you read more on it, it is a very complicated process.