What was the main reason of rivalries among the European Great Powers at the begining of the 20th century? Your answer: All of the answers:a,b Their common interest in South America Their common interest to become ally of the Unites States of America Imperialist rivalries

The main reason for rivalries among the European Great Powers at the beginning of the 20th century was imperialist rivalries. During this period, European powers were competing for colonies, territories, and resources around the world, leading to tensions and conflicts. This competition for imperial dominance was a significant factor contributing to the tensions that eventually led to World War I.