Https://www.khanacademy.org/humanities/world-history/medieval-times/spread-of-islam/a/the-rise-of-is... this link should help you
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Countries that sided with Germany in World War 2 was Italy, Japan, and most people don't know but Sweden did trade with the Germans during world war 2. Sweden did not partake in ww2 but they continued trade with the Germans, Italy joined the war because they sought out land and colonies, Germany wanted to undo what the treaty of Versailles did and japan wanted to rule the pacific. The United States sided on both wars with the Entente who helped France and Russia fend off against Austria-Hungary and Germany. The United States joined after the Sinking of the Lusitania.
The option which explains one way in which the Byzantine Empire continued the cultural traditions of the Romans is the second one - by using Latin as the primary written language, at least until the 7th century when they started using Greek.
A is a weird option - how can adapting Greek ideas be a continuation of Roman traditions? C is insulting. D is incorrect as Byzantine Empire didn't have gladiators.