Which is the correct example for understanding post-October changes in social, economic and political categories?

Abolition of titles was social, bank nationalisation was economic, and one-party rule was political change

The October Revolution brought changes in several connected areas. Socially, the new government attacked inherited aristocratic privilege, including the formal use of titles. Economically, banks and major industries were brought under state control or nationalised, changing ownership and management. Politically, power increasingly concentrated in the Bolshevik Party and developed toward one-party rule. Option A correctly matches each example with its category. The other options contain invented, reversed or historically false claims: the Tsar did not return, Church rule did not replace Soviet authority, and Tsarist privatisation or foreign rule did not describe the post-October settlement.

This is a Class 9 History question. Chapter: Socialism in Europe and the Russian Revolution. Topic: What Changed after October?.