The correct option is B The Military Revolutionary Committee seized government offices.
At the dawn of 24 October, 1917 in Russia, military troops loyal to the provisional government seized the buildings of two Bolshevik newspapers. They took over telephone and telegraph offices, and protected the Winter Palace. The Military Revolutionary Committee seized government offices and arrested ministers. A Russian cruiser ship named Aurora shelled the Winter Palace. Other naval ships sailed down the River Neva and took control over various military points. By nightfall, the city was under the Bolsheviks and the ministers surrendered.