Answer:
The Battle of Saratoga
Explanation:
The Battle of Saratoga, comprising two significant battles during September and October of 1777, was a crucial victory for the Patriots during the American Revolution and is considered the turning point of the Revolutionary War.
expanded the economy
gold rush
oil boom
factories
cars
created new industries & new jobs which African Americans & women filled
westward expansion meant new farms which both men & women both equally worked the fields
new factories gave women a safe way at financial independence and created UNIONS which meant more rights and protections for people of all genders and races
"<span>b. The improvements in productivity in early agricultural societies enabled more complex societies to develop" would be the best option, since they had a surplus of food--meaning that people could focus on other jobs.</span>
The United States was unprepared for the attack at Pearl Harbor because up until that point America was not involved in the war. It was at that point that we became involved in the war.
Hope this helps.