Which three empires competed for influence in the Balkans?

1. Austria-Hungary
2. Russia
3. ?

The third one would be Serbia.

You're wrong, Sierra.

The third is the Ottoman Empire.

The three empires that competed for influence in the Balkans were Austria-Hungary, Russia, and the Ottoman Empire.

To find the answer to this question, you can start by searching for historical information about the Balkans and its regional powers during the relevant time period. You could use search engines like Google or Bing and type in phrases such as "empires in the Balkans" or "influence in the Balkans." This will provide you with a list of potential empires and countries that had a presence in the Balkans.

Upon further research, you will find that the three primary empires competing for influence in the Balkans were Austria-Hungary, Russia, and the Ottoman Empire. They all sought to expand their territories and exert control over the region due to its strategic geographical location and rich resources.