Which is the correct group of changes after October?

Correct answer: Land became social property banks were nationalised and Bolsheviks came to power

The direct answer is A: land became social property, banks were nationalised, and the Bolsheviks came to power. This option brings together major post-October changes. The Bolsheviks transferred political authority to their government, changed land ownership in favour of social or collective control, and brought banks under state ownership. The reasoning is: the revolution changed who ruled; socialist policy changed control of land and finance; therefore both political and economic institutions changed. A is the only option containing that coherent group. B is wrong because the Tsar did not return and Church rule did not replace the Bolshevik government. C is wrong because there was no such complete foreign takeover and peasants did not disappear. D is wrong because monarchy was not strengthened, banks did not remain simply private, and noble landholding was challenged. Memory cue: after October, remember power, land, and banks changed.