What caution is needed about the names February and October Revolution because of the old Russian calendar?

Correct answer: These names are linked with the old Russian calendar, so they should not be confused with modern dates

Before 1918, Russia followed the Julian calendar, which was behind the Gregorian calendar used in many other countries. Consequently, the event called the February Revolution in the Russian calendar occurred in March according to the modern Gregorian calendar, while the October Revolution occurred in November by that system. The names therefore reflect the calendar used at the time, not a mistake about the sequence of events. Option A is correct. Option B is impossible because the revolutions occurred months apart, option C confuses 1917 with the Revolution of 1905, and option D wrongly denies the political character of October.