Answer:
From 1861 to 1900, the Civil War fostered a great deal of economic change in the United States. During this period, the economic change most fostered by the Civil War included (1) an end to slavery; (2) an increase in the need for cheap labor to work in the factories; and (3) an increase in railroad building.
Explanation:
Most native tribes had allied with the French during the conflict, and they soon found themselves dissatisfied by British rule. In May 1763, just a few months after the formal conclusion of the Seven Years’ War, a pan-tribal confederacy led by Ottawa chief Pontiac rose up in rebellion. His warriors attacked a dozen British forts, capturing eight of them, and raided numerous frontier settlements. Hundreds died in the process. In response, the British handed out smallpox-infected blankets to Pontiac’s followers. Moreover, a gang of whites known as the Paxton Boys massacred 20 defenseless Native Americans who had nothing to do with the fighting.

Economic issues caused many people to emigrate from nicarague.
Emigration means leaving a country and those who leaves a country are known as emigrants.
hence the correct option is
option A ✔✔
Thanks
I believe the answer is B, but at the same time, I'm not sure.