Which factor was an important contributor to the start of World War 1?

A. European countries were competing with one another for control of colonies in Africa and Asia.
B. Industrialized nations were using advanced technology to oppress less developed European nations.
C. The fall of orthodox religion after the reformation lead to religious tensions among Europeans.
D. Democracy began to spread throughout Europe and incited oppression from dictators.

The First World War, formerly called the Great War, was a warlike confrontation centered on Europe that began on July 28, 1914 and ended on November 11, 1918, when Germany accepted the conditions of the armistice.

European colonialism affected the whole world and only China, with very little pain, was able to maintain its independence, and only successful cases of decolonization took place in some British domains inhabited by settlers or descendants of white settlers and in the former Spanish colonies in America after the Hispano-American War of 1898. The establishment of the French protectorate over Tunisia in 1881, the British occupation of Egypt in 1882 or the more or less agreed distribution of Africa after the Berlin Conference, encouraged the European powers to dominate of vast territories. However, the growing tensions in the race for the conquest of new territories outside Europe ended up returning to the continent, especially since the 1890s, since the division of the world was practically complete and Italy and the German Empire had arrived late. , so that his part was very small in relation to his recently acquired power.