Which powers formed the Central Powers and which formed the Allies at the war's outset?

• A. Central Powers included Germany, Austria-Hungary, Ottoman Empire, and Bulgaria; Allies included France, the United Kingdom, Russia (and later Italy, United States, Japan, etc.).
• B. Central Powers included Germany, Austria-Hungary, and Bulgaria; Allies included France, United Kingdom, Russia.
• C. Central Powers included Germany, the Ottoman Empire, and Bulgaria; Allies included France, United Kingdom, Russia.
• D. Central Powers included Germany, Austria-Hungary, Ottoman Empire, and Bulgaria; Allies included France, the United Kingdom, Russia.

Answer: (A)

The question tests understanding of which nations aligned with each side in the early stages of World War I. The Central Powers were the core alliance of Germany and Austria-Hungary, with the Ottoman Empire joining in 1914 and Bulgaria joining in 1915, expanding that bloc. The Allies were led by France, the United Kingdom, and Russia, forming the main opposing alliance at the outset; Italy joined the Allies in 1915, and the United States and Japan joined later as the war continued. So the option that lists Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria as the Central Powers, and France, the United Kingdom, and Russia as the Allies (with later additions like Italy and the United States) is the best fit for the initial coalitions.