Answer:
One of the advantages of commercial farming is that it significantly increases food production, allowing local consumers to buy the same quantity of food for a lower price. Intensive commercial farming, however, uses various kinds of fertilizers and pesticides, posing a threat to ecosystems.
Its C because the Indians got mad after the treaties were not honored and became semi-hostile to which the US gov sent in troops which promptly started several Indian wars.
B is the answer
Hope this helps!
It was a global war for manny reasons