The answer is D. Isolationism was a period in Americas history when they stayed out of wars and affairs that had nothing to do with itself. Dollar is the american currency, big stick has to do with militarism, good neighbor has to do with helping neighbors and allies.
I hope this helps! :)
Factories? Im not very sure because this is kinda vague. but hopefully you can get it!
They are what helped us win and defeat the others and then we got where we are today
It would be the term "c. inflation" that refers to an economic situation where the large amount of money in circulation creates continuous pressure to raise prices, since the value of the money actually decreases.