Answer:
D. all government leaders ultimately answer to the power of ordinary citizens
Explanation:
In Russia, efforts to build communism began after Tsar Nicholas II lost his power during the February Revolution, which started in 1917, and ended with the dissolution of the USSR in 1991.
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4 African americans sat at a lunch counter and the waiters wouldn't serve them at all so they sat there until the place closed. next day they bought 25 other students and the same thing happened