It was Lenin.
It cannot be Stalin, because Lenin is his predecessor and it is with Lenin that the central planning and communism was introduced to what was then Russia.
Karl Marx and Engels created together communism, but didn't introduce it specifically to Russia. They wrote their ideas and they spread all around the world and Lenin was inspired by them.
I think is C,,,,,,,,,,,,,,,,,,,
Lack of expenses.
Let me know if that was right, and good luck!!!
Is there any rest of the Question so I can answer it, Please?