Answer :
C. A coup d'état went down in history as the October Revolution. The interim government was toppled, the Soviets seized power, and Russia later terminated the Triple Entente military alliance with France and Britain. For Russia, it was effectively the end of the war
Aftermath of the 1917 October Revolution, the Bolsheviks launched a coup d'etat against the government.
The Russian revolution of 1917 is a revolution led by Vladimir Lenin who was Bolshevik Party leader who launched a bloodless coup d'état against the Duma's government in Russia.
Hence, aftermath the 1917 October Revolution, the Bolsheviks launched a coup d'etat against the government.
Therefore, the Option C is correct.
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