In what year did the february and october revolutions occur in russia? 1905 1914 1917 1918

In 1917 the February and October revolutions occured in Russia.  

The February Revolution began on this day in 1917, when riots and strikes over the scarcity of food erupt in Petrograd.

The October Revolution, also known as Bolshevik Revolution represented the second and last major phase of the Russian Revolution of 1917, in which the Bolshevik Party seized power in Russia. Thus, they inaugurated the Soviet Regime.

Option C, 1917

Explanation:

The options that don't make sense:  1905, 1914, 1918

The option that makes sense:  1917

 Option C, 1917

false the first governing document in the us history was the articles of federation