Respuesta :
The main factors that led to the beginning of World War II in Europe were "B. the rise of aggressive nationalism among some of the nations defeated in World War I" and "D.rising competition among European powers for colonies and trading posts in Africa and Asia," although option B played a far more prominent role.
The correct answer is the letter B.
The defeated countries in the First World War felt greatly wronged over the treaty of the Versailles, and this triggered an extremely aggressive feeling of nationalism.
This exacerbated nationalism was the main idea of Hitler, who wished to expand Germany's territorial domains and thereby increase the attainment of power and material resources (mainly raw materials). These goals would be won, according to Nazi intentions, through war. These militaristic and expansionist goals were also present in the late 1930s in the fascist Italy of Mussolini and Japan.