The correct answer is "A: The Tsar of Russia".
The Treaty of Versailles was signed on June 28, 1919, between the winning powers of the First World War during the Paris Peace Conference as an effort to bring economic and political stability to Europe after the conflict.
Among the country's who signed the treaty were:
- The United States
- The British Empire
- France
- Italy
- Japan
Russia had no place in the negotiations.