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.
yes they did cuz they were also tradeing with the english for guns and furs so they were also trading with the other natives
A.) Government actions can be conducted in secret.