Which of the following was a key cause of world war ii? a. the dangerous and aggressive expansion of totalitarian nations b. the assassination of archduke franz ferdinand by serbian nationalists c. the soviet union’s efforts to spread communism around the world d. the establishment of alliances between japan, russia, and great britain

A. The dangerous and aggressive expansion of totalitarian nations

Explanation:

The rise of totalitarian nations and dictators such as Hitler, Mussolini, Franco, and Stalin, was a fundamental element in starting WW2. Totalitarian governments gave its leaders enough power to seek belligerent purposes without resistance from their populations.

This allowed them, specially in the case of Japan and Nazi Germany, to pursue aggressive invasions that eventually started the war.

the united states didn't wanted to get involve with other countries probelms

d

explanation: