Describe the origins of the russian revolution of 1917.

If you could explain a little bit, better for example you could say, It started cause Russia had just pulled out of WW1 and the Russian population was mad at the tsar, which then made a bunch of people go support the communists. 

The correct answer is "B".

"Self-Determination" is the process by which a group of people in a certain territory form their own state and elect their own rulers under a predetermined form of government.

This concept was included in President Woodrow Wilson's "14 points" which was a proposal that aimed to achieve world peace and mutual understanding between countries after the First World War ended in 1918.

As a result of these efforts, a number of nations in eastern Europe formed from the separation of the Ottoman and Austro-Hungarian empires.