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.
The answer is d because it makes more sense
Slavery—The Peculiar Institution. During the course of the slave trade, millions of Africans became involuntary immigrants to the New World. Some African captives resisted enslavement by fleeing from slave forts on the West African coast. Others mutinied on board slave trading vessels, or cast themselves into the ocean ...
Florence had amassed huge wealth because of their famous bankers who gained power. These bankers and politicians, most notably the Medici family, used their wealth to pay for commissions from famous artists of the time which enriched the society. This is one of the reasons why the renaissance began in Italy.<span />