Which soldiers began to join the demonstrators in the February Revolution?

Correct answer: Sections of soldiers called by the government

As the February Revolution developed, sections of the soldiers who had been called by the government to control the demonstrations began to refuse orders and join the protesters. This was a decisive development because the government depended on the armed forces to suppress the uprising. When army loyalty weakened, the state could no longer rely on repression alone, and workers’ demonstrations gained much greater strength. Therefore, option C is correct. The question does not refer to foreign palace guards, soldiers selling bread, or only distant naval forces; those descriptions do not match the historical sequence in Petrograd.