What pact was formed to balance European power against the Triple Alliance?

Triple Entente

League of Nations

Monroe Doctrine

The Triple Entente

Explanation:

The Triple Entente describes the informal understanding between the Russian Empire, the French Third Republic and the United Kingdom. It built upon the Franco-Russian Alliance of 1894, the Entente Cordiale of 1904 between Paris and London, and the Anglo-Russian Entente of 1907

Triple Entente

Explanation:

The Triple Alliance was created and it consisted of Germany, Austria-Hungary and Italy. They would later become the Central Powers in World War I.

In response to this alliance, the Triple Entente was created. It was comprised of Russia, France and Great Britain. They would become the Allied Powers in World War I.

Therefore, the correct answer is: Triple Entente