Final answer:
Mussolini's main point was to make Italy an empire again, requiring the Italian people to dedicate themselves to the nation by Fascist ideals. The option (4) is correct.
Step-by-step explanation:
Mussolini’s main point in his statement was that to make Italy an empire again, the Italian people must work for the nation. This reflects his Fascist vision of a centralized, powerful state, emphasizing unity, nationalism, and militarism. Mussolini's regime promised to lead Italy “back to her ways of ancient greatness” by promoting order, stability, and the expansion of the Italian Empire, urging Italians to adopt military discipline and loyalty to the state above all else.
His notion of Fascism can be summed up by the phrase, “All within the state, none outside the state, none against the state.” Through his propaganda and policies, Mussolini sought to infuse in the public a strong sense of national identity and destiny that would support his expansionist and authoritarian goals, such as military conquests aimed to “make Italy great again”. Therefore, option (4) is correct.