I'm sure the answers d, because it would help way more than the other options you'd want to know first hand what happen the only way to do so is to speak to those who fought in the war.
Answer: Social
Explanation: I just got it right on my world history work
Farmers mastered irrigation early, providing more crops than they needed to support the population.
The Harrison Land act took place on April 15, 1800. And was aimed towards giving people the right to buy land in the northwest territory. Hope this helps!