The Articles of Confederation were unsuccessful because they lacked a strong unitary structure for the United States. The writers feared the power of a strong federal government. In order to prevent strong federal control, the states were privileged as the arbiters of government in the new nation. The supremacy of the states limited the power of the federal government. These limitations proved problematic in constructing a strong nation in the post- revolutionary period.
Answer: It is B, they assured Austria-Hungary that they would have their backs in an invasion of Serbia.
Britain was interfering with american shipping
The Indian National Congress