Question

what caused the february revolution of 1917?
o people were angry because of the tsars poor leadership.
o lenins idea of a classless society induced people to revolt.
o protests against food and coal shortages turned into riots.
o the duma rose up against the autocratic russian monarchy.

Explanation:

The February Revolution of 1917 was sparked by widespread discontent. Food and coal shortages led to protests that escalated into riots. Tsar Nicholas II's poor leadership contributed to the unrest, but the immediate trigger was the protests over shortages. Lenin's ideas were more influential in the October Revolution. The Duma did not initiate the uprising in the same direct way as the protests over shortages.

Answer:

Protests against food and coal shortages turned into riots.