Question

while many russian soldiers were on the front during world war i, most of those who remained behind responded to the february revolution by
leaving the cities to fight on the front.
firing into crowds of peaceful protestors.
joining the riots instead of stopping them.
breaking up the riots and restoring order.

Explanation:

During the February Revolution in Russia, soldiers who remained behind often sympathized with the protesters. They joined the riots rather than suppressing them. This was a significant factor in the downfall of the Tsarist regime as the military support for the government eroded.

Answer:

C. joining the riots instead of stopping them.