C building a house made of mud in a hot dry area
Economists have frequently hypothesized that industrialization and its correlates played a major role in inducing fertility decline in the United States after 1850. ... This leaves changes in the cost of raising children as the likely driver of the industrialization result.
It would be A or D depending.
A if you are talking about the 1910's-20's. The war lead to some rapid growth in the military and made the USA into the central hub of trade in west as many nations were indebted to them.
D as this was the first time the USA became the global power as they took control of Cuba, Guam and the Philippines in this time.
Answer: (lol i'm from Europe its A)
Explanation:
