I'm confused... Explain an ill be willing to help :)
Answer:
The alliance system
Explanation:
German government's guarantee to offer aid to Austria-Hungary, and Russia's danger to counter if Austria-Hungary attacked Serbia made the alliance together framework and instrument for animosity. As proven by the evidence, the hostility between certain powers was uncontrollable therefore causing the outbreak of WW1.
The item or items are real and not reproduced.
Answer: A) Lincoln signed the Pacific Railroad Act of 1862 into law, which stimulated the construction of the railroad.
Explanation: Just took the test :)