Trotsky's link with the Red Army shows which need of Bolshevik power?

Correct answer: Need for disciplined military organisation in Civil War

The direct answer is A: Trotsky’s connection with the Red Army shows the need for disciplined military organisation during the Civil War. A new government could not survive by declarations alone; it needed a trained, organised force to fight its opponents, defend territory and obey central commands. Trotsky played a major role in organising and leading the Red Army, which helped the Bolsheviks defend and consolidate their rule. The reasoning is therefore: Civil War created a military threat; military threat required coordination and discipline; Trotsky’s Red Army work answered that need. B is wrong because the aim was not to make the Tsar a cultural leader. C is wrong because Red Army organisation was not a plan to return Church property. D is wrong because it did not give full power to the Constituent Assembly; Bolshevik rule was being defended and centralised. A correctly links the person, institution and historical situation. Memory cue: Trotsky = Red Army = organised defence in the Civil War.