B. problems could be solved using human reason.
Answer:
The 19th century
Explanation:
The late 19th-century United States is probably best known for the vast expansion of its industrial plant and output. At the heart of these huge increases was the mass production of goods by machines. This process was first introduced and perfected by British textile manufacturers.
B is the answer to the question
The American Revolution showed the benefit of home field advantage if you are willing to undertake atypical warfare.
In short, the revolution showed that the colonists knew the land that they were on, knew which locals supported them, and knew how to supply and get around the more professional British army.
Out of all those awnsers 6000 BCE is right.
