What did Mussolini take advantage of to seize power in Italy?

In 1921, the Fascist Party was invited to join the coalition government. By October 1922, Italy seemed to be slipping into political chaos. The Black Shirts marched on Rome and Mussolini presented himself as the only man capable of restoring order. King Victor Emmanuel invited Mussolini to form a government.

In Italy, Benito Mussolini used his charisma to establish a powerful fascist state. Benito Mussolini coined the term “fascism” in 1919 to describe his political movement. He adopted the ancient Roman fasces as his symbol. This was a bundle of rods tied around an ax, which represented the power of Rome.

i think it's b or c hope this