B. Russia backed out of the war.
The Treaty of Brest-Litovsky signified Russia's exit from the War. In November of 1917 Russia was having its own problems. During this time the Russian government was being overthrown and a communist regime being implemented by Lenin.
Answer:
They all have an effect on one another. With international trade comes trade embargoes if two or more nations don't get along. Global conflicts can also bring about a decrease in international trade for the offending nation as a sort of punishment. This is usually carried out by the UN but can also be done on a state by state basis.
I'm guessing they didn't need any slaves for hunting because slaves weren't even considered a full human, citizen. And the whites usually had alot of money. And hunting was a game they did almost every morning as competition and sport. The only people with privilege and money were whites. The slaves who were blacks didn't have the money nor the privlage or any laws to support them to purchase anything. If someone owned them, bought them like tools the slaves didn't have any right to anything. So that's why I think the fur industry didn't need any slave help because at that time the whites believed that the blacks were horrid beasts and other rude and offence remarks, and if they set them free and gave guns to them, the slaves would react and kill every white seen.
Hope this helps
Option A. War of 1812 is the correct option. One of the last times the United States declared war was on Japan after the Pearl Harbor Attack in 1941. Options B, C, and D all occurred after this, and thus, they can be eliminated.