Step 1: Recall sequence of events.
Russia had two revolutions in 1917:
- February Revolution: Overthrew Tsar Nicholas II, ended monarchy.
- October Revolution: Brought Bolsheviks (Lenin) to power.
Step 2: Identify the first one.
The February Revolution (March 1917 as per Western calendar) is regarded as the first revolution of 1917.
Step 3: Eliminate distractors.
(A) October Revolution: Second revolution of 1917.
(B) March Revolution: Another name used in Western calendar, but the recognized name is February Revolution.
(D) November Revolution: Incorrect, no such term.
Step 4: Conclusion.
Correct answer is (C) February Revolution.