20 Regarding the outbreak of World War I, which of the following statement is incorrect?
(A) Germany failed to manage its alliance system made by Chancellor Otto Bismarck, and it finally dragged the concerned countries into war.
(B) Under the opposition of Russia, the Reassurance Treaty between Russia and Germany failed to be renewed. The bilateral relations between Germany and Russia further worsened.
(C) Germany carried out the “Great Navy” plan, threatening Great Britain’s vital interest.
(D) Germany was isolated diplomatically due to the emergence of Franco-Russian alliance, Anglo-French, and Anglo-Russian Coalitions.