Answer:
The Battle of Fort Donelson was an early battle in the American Civil War (1861-1865). The success of this battle opened the Tennessee River to Union shipping.
Explanation:
D.Japan takes control over Korea
Child labor was in the interest of factory owners because they did not have to pay children fair wages, and they (the children) were less likely to strike.
For the reason that Gorbachev is in favour of the "decentralisation" of the Soviet Union, these hardline communist leaders plotted a coup against his leadership. The Soviet coup of 1991 proved to be a failed operation because the Soviet Union was eventually disbanded by the same year.