Whom did the government call to stop the demonstrators?

Correct answer: Cavalry and police

The tsarist government called the cavalry and police to stop the demonstrators in Petrograd. This response shows that the government treated the growing protest as a threat requiring force rather than addressing the shortages, war pressures and political grievances behind it. Option B is correct because cavalry units and police were the forces used for repression and crowd control. Peasants and landlords were social groups, not the government’s principal security force in the city. Foreign traders and school teachers had no official role in suppressing the demonstrations. The attempt to control the streets failed when many soldiers refused to fire on the people and some joined the workers, turning the crisis into a revolution.