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The Last One

Explanation:

The Powers not delegated to the United States, are reserved to the States respectively

it was on the rise and doing very well and would continue to do well until the great depression from 1929-1939

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.