The answer to that would be A) peaceful coexistence.
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The Tenth Amendment in theConstitution states that whateverpowers not given to the federal gov by the Constitution is reserved for thestate and the people respectively. This clause of the amendment greatly increase the power for states to interpret/expand their power.
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It was much lighter and easier to carry unlike the coins they normally used.
The Spanish-American War affected U.S. power in Asia by making the U.S. an important power in Asia. With the acquisition of Guam and the Philippines the U.S. increased it's influence in Asia.
- Hopefully this helps a bit more i got it from another question similar to this one.