Support for the bolsheviks grew during 1917 because the provisional government did not
a force tsar nicholas ii to step down.
b continue the fight with germany.
c institute land reforms.
d become democratic.

The right answer is c institute land reforms.

The rise of the Bolsheviks can be seen as result of an intense campaign of propaganda, in the form of written material, as well as rallies and speeches designed to demonstrate the legitimacy of the Bolshevik movement. The provisional government did not succeed in developing the reforms it promised when they overthrown the Tsar. The campaign focused on portraying the current administration and their allies as incompetent and then offering the Bolsheviks as the alternative party. Lenin, under his slogan, promised several reforms for the Russian society, such as land reform, end to the war and increase in Russia's food supply. This had an extremely popular acceptance by the peasantry and contributed significantly for the support for the Bolsheviks movement.

the answer is mass marketing.