What was the impact of the russian revolution on world war i, europe, and the world?

In many countries communist parties were formed on the line of Russia.  It gave the world a new economic system known as socialism.  The Bolsheviks encouraged colonial people to follow their experience. It inspired a number of freedom movement in other countries.  Many non-Russians from outside the country participated in the conference. Some even received education from communist university of the workers of the earth.  By the time the 2nd world war broke socialism had acquired a global face. Though by the end of the century the image of USSR and a socialist country declined.

christopher columbus (1492–1504)

the answer is choice (b)