Answer:
In 1816, a group of white Americans founded the American Colonization Society to deal with the “problem” of the growing number of free blacks in the United States by resettling them in Africa. The resulting state of Liberia would become the second black republic in the world at that time.
Explanation:
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.
