The russian Revolution of february,1917 resulted from which causes:(Mark all that apply)
a) Most Russians had opposed going to war for serbia from the start.
b) Major problems of food supply to civilians during the last years of the war.
c) Breakdown in the war making capacity of the country,resulting in tremendous losses at the front and general war weariness.
d) Incompetent leadership on the part of the Tsar power and his entourage.