Why did mutiny by soldiers called by the government deepen the power crisis?

Correct answer: Because forces called for repression were themselves moving away from orders

A government may call soldiers to suppress a protest because soldiers are expected to obey official commands and restore order. If those same soldiers mutiny, refuse orders, or move away from repression, the government loses control over its own coercive instrument. Protesters then face less immediate force, while the authorities appear divided and weak. This turns a public demonstration into a deeper crisis of political authority.

Option A is correct because the forces called for repression were themselves withdrawing from obedience. Soldiers did not solve the bread crisis merely by mutinying, and the question does not describe them closing the Duma or privatising factories. The central point is internal breakdown: the state could no longer reliably use its army to defend Tsarist rule.