What was the effect of severe cold and heavy snow in February 1917?

Correct answer: Crisis and hardship increased

The correct answer is A because severe cold and heavy snow made an already serious wartime crisis worse in Petrograd. Transport and supplies were disrupted, food became more difficult to obtain, and long queues for bread reflected the hardship faced by urban workers and their families. The weather did not itself end the First World War, make factories prosperous or automatically strengthen the Duma; instead, it intensified public anger against the Tsarist government. These immediate difficulties combined with inflation, shortages, poor working conditions and dissatisfaction with the war, helping turn protests into a wider revolutionary movement. Thus the snow and cold were important aggravating conditions, not the only cause of the revolution.