The right answer is a.there was an economic crisis in Italy.
When Italy entered the World War I on the side of the Allies, its economy suffered even more from the war efforts. In 1919, Italy found itself with a huge budget deficit, quickly rising inflation rates, and high unemployment caused also by returning soldiers and reduced emigration possibilities. So the scene was set for serious social conflicts that could not be contained by “weak” governments which the political nationalist right blamed for a loss of territory. The Fascist movement came as an answer for what Italians were looking for. It was an option between a discredited government and Parliament and a socialist revolution.