What did the example of the Russian Revolution teach revolutionaries at the level of strategy?

Correct answer: The need for an organised party, mass movement and ideological programme

The governing concept is revolutionary strategy: successful transformation requires organisation, a social base and a coherent programme. The Russian example showed that a disciplined political party could connect political ideas with workers, soldiers and other dissatisfied groups, formulate demands and coordinate action during a crisis. A mass movement broadened participation, while an ideological programme explained the desired social and economic changes. Thus option A is correct. The lesson was not that isolated protest or royal permission was sufficient. Option B supports the old autocratic order, C supports colonial domination rather than liberation, and D protects feudal privilege. These distractors contradict the revolutionary strategy suggested by the historical example.