The correct answer is: B. The competition between European powers to build the largest army and navy. It was difficult to resolve conflicts. Clashes occurred not only in Europe but also in Africa, China or the Middle East. In addition, there were new competitors and they were very aggressive. The United States and Japan had become great powers fighting for control of the Pacific area. There was no reconciliation between England and Germany. Partnerships were generated such as: Germany-Austria-Hungary; France - Russia and Great Britain. This system of alliances endangered world peace.