The correct option is "totalitarian"
Benito Mussolini was an Italian politician, military and journalist; President of the Council of Royal Ministers of Italy from 1922 to 1943 and Duce -guide- of the Italian Social Republic from 1943 until its execution. He brought to power the National Fascist Party and subsequent Republican Fascist Party, and led a totalitarian regime during the period known as Italian Fascism of the Kingdom of Italy under the blessing of Victor Emmanuel III. In addition, he was the one who led Italy during the Second World War, as part of his imperialist plans in Europe and Africa.