Correct answer:
A. No specific
Secret diplomacy was a major factor based on the fact that led to fear between all the nations and confusion. Nationalism and imperialism is a factor, scramble for Africa, Archduke fradana has some ties based that his death lead to more retaliation in the Balkans which wanted to be independents do Austria-Hungary and Russia fought over for.
The book of Exodus in the bible
Movement of people to a new area or country in order to find work or better living conditions.