What political meaning did the return of protest to the left bank on 26 February have?

Correct answer: It was increasing pressure near power and official institutions

The governing concept is the political importance of revolutionary space. The return of protesters to the left bank on 26 February was not merely a movement across a river. It brought mass pressure closer to important centres of authority and government institutions in Petrograd. Location therefore had political meaning: the demonstrators were challenging the state where its power was concentrated, making it harder for officials to treat the unrest as an isolated workplace disturbance. Option D is correct because it interprets the movement geographically and politically. Options A, B and C miss the context; the event was not ordinary travel, foreign trade or a seasonal agricultural activity.